The Macronix's Solid State Disk controller is fully integrated flash memory controller that provides all the control logic for a PC Card ATA flash memory . The MX9691A
combines 1KB dual-port buffer and buffer manager , integrated MX93011 DSP core , and a complete host interface for both the PC Card ATA and A TA standard.
The MX9691A is typically configured with up to
32MB(unformatted) capacity for 16 pcs. 16Mbit flash
memory or 64MB(unformatted) capacity for 16 pcs.
32Mbit flash memory. The MX9691A supports all the
control signals to execute read/write/erase operation f or
flash memory chip.
The MX9691A is fully compliant with the PC Card ATA
specification. It includes 256 b ytes of integrated attribute
memory(for the required Card Information Structure) and
four Card Configuration registers. The PCMCIA device
driver can access the MX9691A ATA command block
through four different modes b y writing the different modes
by writing the configuration index of the attribute memory
configuration option register.
PIN DESCRIPTION
Host Interface
SymbolNo.TypeDescription
HA[10:0]92,94, 96-97,IHost address line 10-0.
99,101-103,These pins include internal pull-up resistors.
106,109,113
HD[15:0]84-89,116-117, I/OHost data line 15-0.
121-128These pins include internal bus holder circuit that keep previous state
when tri-state.
HOE#,HWE#104,111IHost memory read/write/mode select : Both pins include internal pull-
up resistors that is default in PCMCIA mode.
IOR#,IOW#107,110IHost I/O access.
Both pins include internal pull-up resistors.
HRESET/100IThe host reset signal, when active, initializes the control/status
HRESET#registers and stops any command in process.In PCMCIA mode, the
signal is active high. In ATA extension mode, this signal is active low.
This signal include internal pull-down resistor.
WAIT/98O,ODWAIT or INPUT CHANNEL READY : In both PCMCIA and ATA
IOCHRD Y extension modes, this signal holds host transfers until the controller is
ready to respond.
RDY/BSY#/119O,ZREADY/BUSY or HOST INTERRUPT : In PCMCIA mode , this signal
IREQ#/has two functions. In PCMCIA common memory mode, this signal is
HOSTINTready/busy . It is asserted busy by the reset logic, and can be deasserted
by the local uC. In PCMCIA I/O mode, this signal is IREQ#. In ATA
extension mode, this activ e high signal is HOSTINT, which, when
enable, send an interrupt to the host.
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MX9691A
SymbolNo.TypeDescription
WP/IOCS16#83O,ODWRITE PROTECT or 16-bit I/O TRANSFER : In PCMCIA mode , this
bit has two functions. In PCMCIA common-memory mode,this signal
indicates write protect. In PCMCIA I/O mode, when IOIS16# is as
serted low, it indicates that a 16-bit data transf er is activ e on PCMCIA
bus. In AT A extension mode, the IOCS16# signal indicates that a 16-bit
buffer transf er is activ e on the host b us. This open dr ain signal is only
driven on assertion(low).
REG#/DA CK# 95IAttribute memory and I/O select : In PCMCIA mode, this signal is used
to select attribute memory and I/O space. In ATA extension mode, this
signal is used during DMA with the DREQ, IOR# and IOW# signals to
transfer data between the host and the MX9691A. This pin includes an
internal pull-up resistor.
HCE1#/115ICard enable 1 or Chip select 0: In PCMCIA mode ,this signal is card
CS1FX#enable 1. This signal can enable either ev en or odd numbered-address
bytes onto HD7:0. In ATA extension mode, this signal accesses the
MX9691A command block registers. This input is ignored during DMA
data transfer , i.e . when the DA CK# signal is lo w. This pin includes an
internal pull-up resistor.
HCE2#/114ICard enable 2 or Chip select 1: In PCMCIA mode ,this signal is card
CS3FX#enable 2. This signal can enable odd numbered-address bytes onto
HD15:8. In ATA extension mode, this signal accesses the MX9691A
control block registers. This pin includes an internal pull-up resistor .
INPACK#/118OInput Acknowledge or DMA request : In PCMCIA mode , this signal is
DREQasserted when the MX9691A is configured to respond to I/O card read
cycles at all addresses. In ATA extension mode, this signal is DREQ
and is issued during DMA transfers to indicate that the MX9691A is
ready for DMA transf er.
SPKR/DASP# 93I/OSpeaker or slave present : In PCMCIA mode, the output-enable f or this
signal is controlled by the card configuration registers. In ATA
extension mode, this signal is used as the sla v e-present detector.
STSCHG/90I/OStatus change or pass diagnostics : In PCMCIA mode, this signal is
PDIAG#used to indicate changes in the RDY/BSY#,WP signals in card con
figuration registers. In ATA extension mode, this active low signal is
used between two embedded AT A driv e to indicate that the drive in
slave mode has passed diagnostics.
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MX9691A
Microcontroller interface :
SymbolNo.TypeDescription
D[15:0]33-37,I/ODSP IO/RAM/ROM/FLASH memory array external data bus . These
39-41,pins in clude internal pull-up resistors.
55-58,
60-63
A[15:0]3-5,I/OIn normal mode, these signals are output that used as DSP IO/RAM/
8-11,ROM external address. A14-A0 are for flash memory array address
22-24,also. In upgrade mode, these address is used for R OM address that
26-31controlled by CYH,CYL registers. In ICE debugging mode, these ad
dress are input,asserted by external MX93011 DSP. The internal DSP
is disabled. These pins include internal pull-up resistors.
PCE#67I/OIn normal mode, this signal is output that is used as e xternal program
chip enable. In upgrade mode, this signal is drived to high. In ICE de
bugging mode, this signal is input, asserted by external MX93011 DSP.
The internal DSP is disabled. This pin includes a bus holder circuit.
DCE#68I/OIn normal mode, this signal is output that is used as external data chip
enable. In upgrade mode, this signal is drived to high. In ICE debug
ging mode, this signal is input, asserted by external MX93011 DSP.
The internal DSP is disabled. This pin includes a bus holder circuit.
RD#65I/OIn normal mode, this signal is output that is used as DSP IO/RAM/
ROM external read. In upgr ade mode , this signal is output and as
serted when the data register is read in host interface. In ICE deb u g
ging mode, this signal is input, asserted by external MX93011 DSP.
The internal DSP is disabled. This pin includes a bus holder circuit.
WR#66I/OIn normal mode, this signal is output that is used as DSP IO/RAM/
ROM external write. In upgr ade mode , this signal is driv ed to high. In
ICE debugging mode, this signal is input, asserted by external MX93011
DSP. The internal DSP is disabled. This pin includes a bus holder cir
cuit.
NMI#15INon maskable interrupt pin. This pin includes an pull-up resistor.
INT1#14I/OIn normal mode, this signal is input that is used as interrupt pin.
Interrupt will be internally asserted also when data transfer done, or
command end. In ICE deb ugging mode , this signal is output and as
serted when data transfer done, or command end. This pin includes
an pull-up resistor.
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MX9691A
SymbolNo.TypeDescription
HOLD#16I/OIn normal mode, this signal is input that is used as holding DSP clock
down and release bus. Bus hold will be internally asserted also when
upgrade mode enable . In ICE deb ugging mode , this signal is output
and asserted when upgrade mode enable. In ICE debugging mode ,
this signal is output and asserted when upgrade mode enable. This
pin includes an pull-up resistor.
HLDA#73I/OIn normal mode, this signal is output that is used as ac k to HOLD#
signal. This signal will be internally sent to PCMCIA/AT A interface also
when upgrade mode enable . In ICE debugging mode, this signal is
input and ack to HOLD# when upgrade mode enable. This pin in
cludes an pull-up resistor.
XF#/CPURST# 74OExternal flag, this pin can be directly written by one DSP instruction.
Default inactive (logic high). In ICE debugging mode, this signal is
used to reset CPU.
Flash Memory Interface :
SymbolNo.TypeDescription
F A19/CLE12OIn random mode, this signal is used as flash memory chip high
address line 19. In sequential mode, this signal is used as flash memory
chip command latch enable.
F A18/ALE/20I/OIn r andom mode , this signal is used as flash memory chip high
address line 18. In sequential mode, this signal is used as flash memory
chip address latch enable. This signal is used to select whether the
MX9691A initializes in normal mode or in ICE debugging mode at power-
on reset. If this pin go high, then the MX9691A will s witch to normal
mode at power-on reset,and if this pin remains low , then the MX9691 A
will initializes in ICE debugging mode. This pin includes an internal
pull-up resistor.
ICEMODE
ICE debugging mode select :
ICEMODE=1 —> Normal mode
ICEMODE=0 —> ICE debugging mode
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MX9691A
SymbolNo.TypeDescription
F A17/ER OM21I/OThis signal is used as flash memory chip high address line 17. This
signal is used to select whether the firmware store in flash memory
array or in separate e xternal ROM at power-on reset. If this pin go high,
then the firmware will be executed in flash memory array, and if this pin
remains low , then the firmware will be e xecuted in separate external
ROM.
Store firmware in external ROM or Flash memory array:
EROM = 0 —> Store in External ROM
EROM = 1 —> Store in flash memory array
This pin includes an internal pull-up resistor.
F A[16:15]/1-2I/OThis signal is used as flash memory chip high address line 16-15. These
A T ADET[1:0]signals are used to select configuration in A TA extension mode at power-
on reset. A TADET1 is connected to DSP's IPT1. AT ADET0 is connected
to DSP's IPT0. VDD is connected to IPT2.
Master/Slave selection in ATA mode :
ATADET1 ATADET0 mode selected
1 1 one drive
0 0 master of two drives
1 0 slave of two drives
This power-on configuration can be accessed from PCMCIA/AT A port
601Ch bit3-2. These pins include internal pull-up resistors.
RDFLASH1#54OFlash memory ouptut enable 1 for bank1: This signal will be asserted
by flash memory read operation when flash memory read address latch,
port 601Dh bit 8 = 1(i.e. FA23=1).
Note: Flash memory access window is mapped to 32KW data and
code space 8000h~ffffh.
RDFLASH0#42OFlash memory ouptut enable 0 for bank0: This signal will be asserted
by flash memory read operation when flash memory read address latch,
port 601Dh bit 8 = 0(i.e. FA23=0).
WRFLASH1#19OFlash memory write enable 1 for bank1: This signal will be asserted by
flash memory write operation when flash memory write address latch,
port 601Fh bit 8 = 1(i.e. FA23=1).
WRFLASH0#18OFlash memory write enable 0 for bank0: This signal will be asserted by
flash memory write operation when flash memory write address latch,
49-52In random mode, These signals are decoded from port 601Dh bit 7-5
when flash memory read or port 601Fh bit 7-5 when flash memory
write.
Decoding combination :
bit7 bit6 bit5 FCE[7:0]#
0 0 0 11111110
0 0 1 11111011
0 1 0 11101111
0 1 1 10111111
1 0 0 11111101
1 0 1 11110111
1 1 0 11011111
1 1 1 01111111
In sequential mode, These are decoded from port 601Dh bit 7-5 only
when port 601Eh bit 2 is set.
PWD0#32ODeep power down output 0 for bank0: This signal will put the flash
memory chips of bank0 in deep power-down mode. PWD0# is active
low;PWD0# high enables normal operation. PWD0# also locks out erase
or program operation when active lo w providing data protection during
power transitions. Power down pin PWD0# will be active if FA23=1.
PWD1#64ODeep power down output 1 for bank1: This signal will put the flash
memory chips of bank1 in deep power-down mode. PWD1# is active
low;PWD1# high enables normal operation. PWD1# also locks out erase
or program operation when active lo w providing data protection during
power transitions. Power down pin PWD1# will be active if FA23=0.
FRY/FBY#13IFlash memory Ready/busy input:
This signal indicate the state of erase or program operation in flash
memory chips.This pin includes an internal pull-up resistor.
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MX9691A
Control ROM interface :
SymbolNo.TypeDescription
ROMCS#/75OROM chip select/Flash memory data buffer enable : In normal mode,
FWIN#this signal is used as ROM chip enable if firmware that stored in
external ROM. In ICE debugging mode, this signal is used as flash
memory data buffer (74640) enable if firmware that stored in flash
memory array.
ROMWR#/76OROM write enable/Flash memory data buffer direction control: In
FDIRnormal mode, this signal is used as ROM write enable if firmware that
stored in external ROM. In ICE debugging mode , this signal is used as
flash memory data buffer (74640) direction control if firmware that stored
in flash memory array.
Miscellaneous :
SymbolNo.T ypeDescription
X179ICrystal input.
X278OCrystal ouput.
X32I71I32K Crystal input.
X32O70I32K Crystal output.
TEST81IThis signal is used to select the main system clock, either from
external clock source if this signal is high or from internal PLL circuit if
this signal is low . This pin includes an internal pull-up resistor .
PWR_RST#82IPower on reset, CMOS Schmite-triggered: The MX9691A include
debouncing circuit to stabilize internal DSP reset signal.
LED#6OLED output: This signal is connected to e xternal LED in debugging
system to indicate system status. The LED will be turn-on during reset.
The contorl firmware will turn off the LED after H/W initialization and
pass diagnostics. If system fail, the control firmware will flash the LED
to indicate some error occur. This signal will be high if port 601Ch bit0
set to 1 or OPTR bit2 set to 1.
VCC17,45,53,72,5 volt or 3.3 volt Power pin
80,105,112
GND7,25,38,48,Ground pin
59,69,77,91,
108,120
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Functional and Operation Description
Block Diagram
MX9691A
Host Interface
PCMCIA/ATA
Clock
Clock & Reset
Register Bank
PCMCIA/ATA
interface
256 Byte
CIS RAM
External Memory Bus
MX93011
DSP CORE
1KB Buffer
RAM
Buffer RAM
Control
4KB Internal
RAM
2KB Internal
RAM
Flash Memory
Control
ECC Control
Logic
MX9691A Signal Chip Solid State Disk Controller
Flash
Interface
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Po wer-on detection:
MX9691A
(1). Store firmware in external ROM or Flash memory
array :
FA17/EROM = 0 — > Store in External ROM
FA17/EROM = 1 —> Store in flash memory array
(2). Master/Sla v e selection in AT A extension mode :
FA16/ATADET1 FA15/ATADET0 mode selected
1 1 one drive
0 0 master of two drives
1 0 slave of two drives
(3). ICE deb ugging mode select :
FA18/ICEMDOE = 0 —> ICE debugging mode
FA18/ICEMODE = 1 —> Normal mode
System Memory Map :
(1). Data Space :
AddressFunction & Usage
0000h~007fhInternal RAM (128W) to store control variables
0080h~07ffhInternal RAM(1920W) for flash memory algorithm usage
0800h~5fffhUser define (22kW)
6000h~63ffhI/O range(1kW): ATA CTL. use I/O range (6000h~601fh)
6400h~6fffhUser define (3kW)
7000h~73ffhUser define (1kW)
7400h~77ffhInternal RAM (1kW) for expansion RAM or shadow R OM space
7800h~7fffhROM Data space(2kW)
8000h~ffffhFlash memory access windows(32kW)
(4). Flash memory data buffer control
ROMCS# is replaced by FWIN# if ICE
debugging mode & firmware in flash
memory array ROMWR# is replaced by
FDIR if ICE debugging mode&firmware
in flash memory array
(5). PCMCIA or ATA extension select
HOE# HWE# mode
00ATA e xtension mode
othersPCMCIA mode
(2). Prog ram Space :
AddressFunction & Usage
0000h~77ffhROM program space (32kW)
7800h~7fffhUnused
8000h~ffffhFlash memory access windows(32kW)
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