Datasheet M8813F2W, M8834F2W, M8813F2Y, M8813F1Y, M8813F1W Datasheet (SGS Thomson Microelectronics)

In-System Programmable (ISP) Multiple-Memory and

Logic FLASH+PSD Systems (with CPLD) for MCUs

■ Single Supply Voltage:

–5V±10% for M88xxFxY
– 3 V (+20/–10%) for M88xxFxW

■ 1 or 2 Mbit of Primary Flash Memory (8 uniform

sectors, 16K x 8, or 32K x 8)

■ A second non-volatile memory:

– 256 Kbit (32K x 8) EEPROM (for M8813F1x)

or Flash memory (for M88x3F2x)

– 4 uniform sectors (8K x 8)

■ SRAM (16 Kbit, 2K x 8; or 64 Kbit, 8K x 8)

■ Over 3,000 Gates of PLD: DPLD and CPLD

■ 27 Reconfigurable I/O ports

■ Enhanced JTAGSerial Port

■ Programmable power management

■ Stand-by current:

–50µA for M88xxFxY
–25µA for M88xxFxW

■ High Endurance:

– 100,000 Erase/Write Cycles of FlashMemory
– 10,000 Erase/Write Cycles of EEPROM
– 1,000 Erase/Write Cycles of PLD

M88 FAMILY

DATA BRIEFING

PQFP52 (T)

PLCC52 (K)

Figure 1. Logic Diagram

DESCRIPTION

The FLASH+PSD family of memory systems for
microcontrollers (MCUs) brings In-System-

Table 1. Signal Names

PA0-PA7 Port-A
PB0-PB7 Port-B

PC0-PC7

PD0-PD2 Port-D
AD0-AD15 Address/Data
CNTL0-CNTL2 Control
RESET Reset
V

CC

V

SS

June 2000

Complete data available on

Port-C
PC2 = Voltage Stand-by

Supply Voltage
Ground

Data-on-Disc CD-ROM

or at

www.st.com

V

CC

8

PA0-PA7

3

CNTL0-

CNTL2

AD0-AD15 PC0-PC7

RESET

16

FLASH+PSD

V

SS

8

PB0-PB7

8

3

PD0-PD2

AI02856

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M88 FAMILY

Figure 2A. PLCC Connections

RESET

PB7

CNTL1

CNTL2

CNTL0

47

48

49

50

51

AD15

46

AD14

45

AD13

44

AD12

43

AD11

42

AD10

41

AD9

40

AD8

39

VCC

38

AD7

37

AD6

36

AD5

35

AD4

34

PA0

AD1

AD2

AD3

AD0

AI02857

VCC
GND

PD2
PD1
PD0
PC7
PC6
PC5
PC4

PC3
PC2
PC1
PC0

PB0

PB1

PB2

PB3

PB4

PB5

GND

PB6

52

2

34567

PA4

PA3

GND

1

PA2

PA1

8
9
10
11
12
13
14
15
16
17
18
19
20

21222324252627282930313233

PA7

PA6

PA5

Programmability (ISP) to Flash memory and
programmable logic. The result is a simple and
flexible solution for embedded designs.
FLASH+PSD devices combine many of the
peripheral functions found in MCU based
applications. FLASH+PSD provides a glueless
interface to most commonly-used ROMless
MCUs.

Table 2 summarizes all the devices in the M88
Family.

The CPLD in the FLASH+PSD devices features
an optimized Macrocell logic architecture. The
Macrocell was created to address the unique
requirements of embedded system designs. It
allows direct connection between the system
address/data bus, and the internal FLASH+PSD

Figure 2B. PQFP Connections

PB0

PB1

PB2

PB3

PB4

PB5

GND

PB6

PB7

CNTL1

CNTL2

RESET

44

22

PA0

43

23

AD0

42

24

AD1

41

25

AD2

CNTLO

40

26

AD3

39
38
37
36
35
34
33
32
31 VCC
30
29
28
27 AD4

AD15
AD14
AD13
AD12
AD11
AD10
AD9
AD8

AD7
AD6
AD5

AI02858

PD2
PD1
PD0
PC7
PC6
PC5
PC4
VCC
GND
PC3
PC2
PC1
PC0

52

51

50

49

48

47

46

45

1
2
3
4
5
6
7
8
9
10
11
12
13

14

15

16

17

18

19

20

21

PA7

PA6

PA5

PA4

PA3

PA2

PA1

GND

registers, to simplify communication between the
MCU and other supporting devices.

The FLASH+PSD device includes a JTAG Serial
Programming interface, to allow In-System
Programming (ISP) of the entire device. This
feature reduces development time, simplifies the
manufacturing flow, and dramatically lowers the
cost of field upgrades. Using ST’s special Fast­JTAG programming, a design can be rapidly
programmed into the FLASH+PSD.

The innovative FLASH+PSD family solves key
problems faced by designers when managing
discrete Flash memory devices, such as:

– Complex address decoding
– In-System (first-time) Programming (ISP)
– Concurrent EEPROM or Flash memory

programming (IAP).

Table 2. Product Range

Part Number

Primary Flash

1

Memory

Secondary NVM

SRAM

2

I/O Ports Voltage Range Access Time

M8813F1Y 1 Mbit 256 Kbit EEPROM 16 Kbit 27
M8813F2Y 1 Mbit 256 Kbit Flash memory 16 Kbit 27

4.5-5.5 V

90 ns or

150 ns

M8834F2Y 2 Mbit 256 Kbit Flash memory 64 Kbit 27
M8813F1W 1 Mbit 256 Kbit EEPROM 16 Kbit 27

2.7-3.6 V 150 nsM8813F2W 1 Mbit 256 Kbit Flash memory 16 Kbit 27

M8834F2W 2 Mbit 256 Kbit Flash memory 64 Kbit 27

Note: 1. All products support: JTAG serial ISP, MCU parallel ISP, ISP Flash memory, ISP CPLD, Security features, Power Management

Unit (PMU), Automatic Power-down (APD)

2. SRAM may be backed up using an external battery.

2/7

Figure 3. FLASH+PSD Block Diagram

)

PC2

(

VSTDBY

PA0 – PA7

PB0 – PB7

PC0 –PC7

M88 FAMILY

PD0 –PD2

ADDRESS/DATA/CONTROL BUS

FLASH MEMORY

1 OR 2 MBIT PRIMARY

EMBEDDED

PAGE

REGISTER

POWER

MANGMT

8 SECTORS

ALGORITHM

8

UNIT

4 SECTORS

(BOOT OR DATA)

256 KBITSECONDARY

EEPROM or FLASH MEMORY

SECTOR

SELECTS

)

DPLD

(

PLD

FLASH DECODE

SECTOR

SELECTS

73

PORT

PROG.

BACKUP SRAM

16 OR 64 KBIT BATTERY

SRAM SELECT

PERIP I/O MODE SELECTS

A

PORT

RUNTIME CONTROL

CSIOP

AND I/O REGISTERS

3 EXT CS TO PORT D

FLASH ISP CPLD

73

PORT

PROG.

PORT A ,B & C

16 OUTPUTMACROCELLS

(CPLD)

B

PORT

PORT A ,B & C

24 INPUT MACROCELLS

CLKIN

PORT

PROG.

C

PORT

MACROCELL FEEDBACK OR PORT INPUT

CLKIN

PORT

PORT

PROG.

JTAG

PLD, CONFIGURATION

D

SERIAL

CHANNEL

LOADER

& FLASHMEMORY

PLD

BUS

INPUT

CLKIN

PROG.

CNTL0,

CNTL1,

MCU BUS

CNTL2

INTRF.

ADIO

AD0 – AD15

PORT

GLOBAL

CONFIG. &

SECURITY

(PD1)

AI02861D

Sometimes computers try to be too clever for theirown good. Take this illustration for instance.
Just because somany of the labels are rotated through ninetydegrees, FrameMaker seems to
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displayed inlandscape, rotated by ninety degrees. Well I wouldn’t. So I amputting inall this text
just to weight the average in this direction.

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M88 FAMILY

The JTAG Serial Interface block allows In-System
Programming (ISP). Embedded dual-bank
memories eliminates the need for anexternal Boot
EPROM or Flash memory, or an external
programmer. To simplify Flash memory updates,
program execution is performed from a secondary
Flash memory (for the M88xxF2x) or EEPROM
(for the M8813F1x) while the primary Flash
memory is being updated. This solution avoids the
complicated hardware and software overhead
necessary to implement IAP.

ST makes available a software development tool,
PSDsoft, that generates ANSI-C compliant code
for usewithyourtarget MCU. This code allowsyou
to manipulate the non-volatile memory (NVM)
within the FLASH+PSD. Code examples are also
provided for:

– Flash memory IAP via the UART of the host

MCU

– Memory paging to executecode across several

FLASH+PSD memory pages

– Loading, reading, and manipulation of

FLASH+PSD Macrocells by the MCU.

FLASH+PSD ARCHITECTURAL OVERVIEW

FLASH+PSD devices contain several major
functional blocks. Figure 3 shows the architecture
of the M88 FLASH+PSD device family. The
functions of each block are described briefly in the
following sections. Many of the blocks perform
multiple functions and are user configurable.

Memory

The 1 or 2 Mbit (128K x 8, or 256K x 8) Flash
memory is the primary memory of the
FLASH+PSD. It is divided into eight equally-sized
sectors that are individually selectable.

The 256 Kbit (32K x 8) secondary EEPROM or
Flash memory is divided into four equally-sized
sectors. Each sector is individually selectable.

The SRAM is intended for use as a scratch-pad
memory or as an extension to the MCU SRAM. If
an external battery is connected to Voltage Stand­by (VSTBY, PC2), data is retained in the event of
power failure.

Each sector of memory can be located in a
different address space as defined by the user.
The access times for all memory types includes
the address latching and DPLD decoding time.

The M8813F1x has 64 bytes of OTP memory for
product identifiers, serial numbers, calibration
constants, etc..

Page Register

The 8-bit Page Register expands the address
range of the MCU by up to 256 times. The paged
address can be used as part of the address space
to access external memory and peripherals, or

internal memory and I/O. The Page Register can
also be used to change the address mapping of
sectors of the Flash memories into different
memory spaces for IAP.

PLDs

The device contains two PLDs, the Decode PLD
(DPLD) and the Complex PLD (CPLD), each
optimized for a different function, as shown in
Table 3. The functional partitioning of the PLDs
reduces power consumption, optimizes cost/
performance, and eases design entry.

The DPLD is used to decode addresses and to
generate Sector Select signals for the
FLASH+PSD internal memory and registers. The
DPLD has 17 combinatorial outputs, which are
used to select memory sectors and JTAG. The
CPLD has 16 Output Macrocells (OMC) and 3
combinatorial outputs. The CPLD also has 24
Input Macrocells (IMC) that can be configured as
inputs to the PLDs. The PLDs receive their inputs
from the PLD Input Bus and are differentiated by
their output destinations, number ofproduct terms,
and Macrocells.

The PLDs consume minimal power. The speed
and power consumption of the PLD is controlled
by the Turbo bit in the PMMR0 register and other
bits in the PMMR2 registers. These registers are
set by the MCU at run-time. There is a slight
penalty to PLD propagation time when invoking
the power management features.

I/O Ports

The FLASH+PSD has 27 individually configurable
I/O pins distributed over the four ports (Port A, B,
C, and D). Each I/O pin can be individually
configured for different functions. Ports can be
configured as standard MCU I/O ports, PLD I/O, or
latched address outputs for MCUs using
multiplexed address/data buses. Ports A and B
can be configured to be open drain.

The JTAG pins can be enabled on Port C for In­System Programming (ISP).

Ports A and B can also be configured as a data
port for a non-multiplexed bus or multiplexed
address/data bus for certain types of 8-bit MCUs.

MCU Bus Interface

FLASH+PSD interfaces easily with most 8-bit
MCUs that have either multiplexed or non­multiplexed address/data buses. The device is
configured to respond to the MCU’s control
signals, which are also used asinputsto the PLDs.
Where there is a requirement to use a 16-bit data
bus to interface to a 16-bit MCU, two PSDs must
be used. For examples, please see the full data
sheet.

4/7

M88 FAMILY

Table 3. PLD I/O

Name Inputs Outputs

Decode PLD (DPLD) 73 17 42
Complex PLD (CPLD) 73 19 140

Product

Terms

JTAG Port

In-System Programming (ISP) can be performed
through the JTAG signals on Port C. This serial
interface allows complete programming of the
entire FLASH+PSD device. A blank devicecan be
completely programmed for the first time after it is
soldered to the board. The JTAG signals (TMS,
TCK, TSTAT, TERR, TDI, TDO) can be
multiplexed with other functionson Port C. Table 4
indicates the JTAG pin assignments. Four-pin
JTAG is also fully supported.

In-System Programming (ISP)

Using the JTAG signals on Port C, the entire
FLASH+PSD device can be programmed or
erased without the use of the MCU. The primary
Flash memory can also be programmed in-system
by the MCU executing the programming
algorithms out of the secondary memory, or
SRAM. The secondary memory can be
programmed thesameway by executing out of the
primary Flash memory. The PLD or other
FLASH+PSD Configuration blocks can be
programmed through the JTAG port or a device
insertion programmer. Table 5 indicates which
programming methods can program different
functional blocks of the FLASH+PSD.

Power Management Unit (PMU)

The Power Management Unit (PMU) gives the
user controlof the power consumption on selected
functional blocks based on system requirements.
The PMU includes an Automatic Power-down
(APD) Unit that turns off device functions during
MCU inactivity. The APD Unit has a Power-down
mode that helps reduce power consumption.

The FLASH+PSD also has some bits that are
configured at run-time by the MCU to reduce

Table 4. JTAG SIgnals on Port C

Port C Pins JTAG Signal

PC0 TMS
PC1 TCK
PC3 TSTAT
PC4 TERR
PC5 TDI
PC6 TDO

power consumption of the CPLD. The Turbo bit in
the PMMR0 register can be reset to 0 and the
CPLD latches its outputs and goes to sleep until
the next transition on its inputs.

Additionally, bits in the PMMR2 register can be set
by the MCU to block signals from entering the
CPLD to reduce power consumption. Please see
the full data sheet for more details.

SECURITY AND NVM SECTOR PROTECTION

A security bit in the Protection Register enables
the software project, coded in the FLASH+PSD, to
be locked up. This bit is only accessible by the
system designer from the JTAG serial port, or from
a parallel insertion programmer. It cannot be
accessed from the MCU. The only way a security
bit can be cleared is to erase the entire chip.

The contents of the sectors of the primary and
secondary NVM blocks can beprotectedusingbits
in the Protection Registers. These bits are
accessible from the MCU in the application code,
or from a programmer during the set-up
procedure.

Table 5. Methods of Programming Different Functional Blocks of the FLASH+PSD

Functional Block JTAG Programming Device Programmer IAP

Primary Flash Memory Yes Yes Yes
Secondary EEPROM or Flash memory Yes Yes Yes
PLD Array (DPLD and CPLD) Yes Yes No
FLASH+PSD Configuration Yes Yes No
OTP Row No Yes Yes

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M88 FAMILY

Table 6. Ordering Information Scheme

Example: M88 1 3 F 1 W – 15 T 1 T

SRAM Capacity Option

1 16 Kbit T Tape& Reel Packing
3 64 Kbit

Temperature Range

Flash Memory Capacity 10to70°C (commercial)

3 1 Mbit (128K x 8) 6 –40 to 85 °C (industrial)
4 2 Mbit (256K x 8)

2nd Non Volatile Memory Package

1 256 Kbit EEPROM K PLCC52
2 256 Kbit Flash memory T PQFP52

Operating Voltage Speed

4.5 V to 5.5 V

Y
W 2.7 V to 3.6 V -15 150 ns

Note: 1. Available on the 4.5 to 5.5V range, only.

-90

90 ns

ORDERING INFORMATION SCHEME

When delivered from ST, the FLASH+PSD device
has all bits in the memory and PLDs set to 1. The
FLASH+PSD Configuration Registerbits are setto

0. The code, configuration, and PLD logic are
loaded using the programming procedure.
Information for programming the device is
available directly from ST. Please contact your
local sales representative.

The notation used for the device number is as
shown in Table 6. For a list of available options
(speed, package, etc.) or for further information on
any aspect of this device, please see the full data
sheet (please consult our pages on the world wide
web:

www.st.com/flashpsd

). Alternatively, please

contact your nearest ST Sales Office.

1

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M88 FAMILY

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