The CXP858P56A is a CMOS 8-bit microcomputer
which consists of A/D converter, serial interface,
timer/counter, time-base timer, closed caption decoder,
data slicer, on-screen display function, I2C bus
interface, PWM output, remote control reception
circuit, HSYNC counter and watchdog timer as well
as basic configuration like 8-bit CPU, PROM, RAM
and I/O port.
Also this IC provides a power-on reset function
and sleep function that enables to lower power
consumption.
The CXP858P56A is the PROM-incorporated version
of the CXP85856A with built-in mask ROM. This
provides the additional feature of being able to write
directly into the program (also into the OSD
character ROM or caption character ROM possible).
Thus,
system development and for small-quantity production.
Features
• A wide instruction set (213 instructions) which covers various types of data
• Minimum instruction cycle333ns at 12MHz operation
• Incorporated PROM56K bytes (Programming)
• Incorporated RAM2176 bytes (Excludes the closed caption decoder and on-screen display VRAM)
• Peripheral functions
• Interruption15 factors, 15 vectors, multi-interruption possible
• Standby modeSleep
• Package64-pin plastic SDIP/QFP
it is most suitable for evaluation use during
– 16-bit operation/multiplication and division/Boolean bit operation instructions
urchase of Sony's I2C components conveys a license under the Philips I2C Patent Rights to use these components
in an I2C system, provided that the system conform to the I2C Standard Specifications as defined by Philips.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
OSD display vertical sync signal input.
OSD display horizontal sync signal input.
(Port B)
7-bit I/O port. I/O can be set in a unit of single bits.
(7 pins)
External interruption request input.
Active at the falling edge.
(Port C)
8-bit I/O port. I/O can be set in a unit of single bits.
(8 pins)
External interruption request input.
Active at the falling edge.
(Port D)
8-bit I/O port. I/O
can be set in a unit
of single bits.
Can drive 12mA
synk current.
(8 pins)
Serial clock I/O.
Serial data output.
Serial data input.
HSYNC counter (CH0) input.
HSYNC counter (CH1) input.
Remote control reception circuit input.
PD7/EC
PE0/TO
PE1
PE2/INT0
PF0/PWM0
to
PF3/PWM3
PF4/SCL0/PWM4
PF5/SCL1/PWM5
PF6/SDA0/PWM6
PF7/SDA1/PWM7
R, G, B, I, YS, YM
I/O/Input
I/O/Output
I/O
I/O/Input
Output/Output
Output/I/O
Output/I/O
Output
External event input for timer/counter.
(Port E)
Rectangular wave output for timer/counter.
3-bit I/O port. I/O
can be set in a unit
of single bits.
(3 pins)
(Port F)
8-bit output port
and large current
Input for external interruption request.
Active at the falling edge.
8-bit PWM outputs.
(8 pins)
(12mA) N-ch open
drain output.
Lower 4 bits are
Transfer clock I/O for I2C bus interface.
(2 pins)
medium drive voltage
(12V);upper 4 bits are
5V drive. (8 pins)
Transfer data I/O for I2C bus interface.
(2 pins)
6-bit OSD display outputs. (6 pins)
– 5 –
Page 6
CXP858P56A
Symbol
EXLC
XLC
VIN
Cap
LFC1, LFC2
CVDD
CVSS
EXTAL
XTAL
RST
MP
Vpp
VDD
I/ODescription
Input
Output
Input
—
—
OSD display clock oscillation I/O.
Oscillator frequency is determined by the external L and C.
External composite video signal input.
Input a 2Vp-p signal via a capacitor.
Connects a capacitor for the data slicer between Cap and CVSS.
Connects a capacitor for the PLL circuit LPF between LFC1 and LFC2.
Positive power supply for data slicer.
GND for data slicer.
Input
Output
Connects a crystal for system clock oscillation. When an external
clock is supplied, input it to EXTAL and leave XTAL open.
System reset; active at Low level. I/O pin.
I/O
Outputs a Low level when the power is turned on and the power-on
(2) Serial transfer(Ta = –10 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)
Item
SCK cycle time
SCK
High and Low level widths
SI input setup time
(for SCK ↑)
SI hold time
(for SCK ↑)
SymbolPinConditionMin.Max.Unit
tKCY
tKH
tKL
tSIK
tKSI
SCK
Input mode
Output mode
SCK input mode
SCK
SCK output mode
SCK input mode
SI
SCK output mode
SCK input mode
SI
SCK output mode
1000
8000/fc
400
4000/fc – 50
100
200
200
100
SCK input mode
SCK ↓ → SO delay time
tKSO
SO
SCK output mode
Note) The load of SCK output mode and SO output delay time is 50pF + 1TTL.
Fig. 4. Serial transfer timing
tKCY
200
100
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SCK
SI
SO
tKLtKH
tSIK
Input data
tKSO
0.8VDD
0.2VDD
0.8VDD
0.2VDD
tKSI
0.8VDD
0.2VDD
Output data
– 14 –
Page 15
CXP858P56A
(3) A/D converter characteristics(Ta = –10 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)
ItemSymbolPinConditionMin.Typ.Max.Unit
Resolution
Linearity error
Zero transition
voltage
Full-scale transition
voltage
Conversion time
Sampling time
Analog input voltage
∗1
VZT
∗2
VFT
tCONV
tSAMP
VIAN
AN0 to AN5
Fig. 5. Definitions of A/D converter terms
FF
h
FEh
Digital conversion value
01h
00h
VZTVFT
Linearity error
Analog input
8
±3
Ta = 25°C
VDD = 5.0V
–10
10
70
Vss = 0V
4910
160/fADC
12/fADC
∗3
∗3
0
∗1
Value at which the digital conversion value changes from
4970
5030
VDD
00h to 01h and vice versa.
∗2
Value at which the digital conversion value changes from
FEh to FFh and vice versa.
∗3
fADC indicates the below values due to the contents of bit 6
(CKS) of the A/D control register (ADC: 00F9h) and bits 7
(PCK1) and 6 (PCK0) of the clock control register (CLC:
00FEh).
Bits
LSB
mV
mV
µs
µs
V
PCK1, 0
00 (φ = fEX/2)
01 (φ = fEX/4)
11 (φ = fEX/16)
– 15 –
CKS
0 (φ/2 selection)1 (φ selection)
fADC = fC/2
fADC = fC/4
fADC = fC/16
fADC = fC
fADC = fC/2
fADC = fC/8
Page 16
(4) Interruption, reset input(Ta = –10 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)
(6) I2C bus timing(Ta = –10 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)
Item
SCL clock frequency
Bus-free time before starting transfer
Hold time for starting transfer
Clock Low level width
Clock High level width
Setup time for repeated transfers
Data hold time
Data setup time
SDA, SCL rise time
SDA, SCL fall time
Setup time for transfer completion
∗1
The data hold time should be 300ns or more because the SCL rise time (300ns Max.) is not included in it.
SymbolPinConditionMin.Max.Unit
fSLC
tBUF
tHD; STA
tLOW
tHIGH
tSU; STA
tHD; DAT
tSU; DAT
tR
tF
tSU; STO
• A pull-up resistor (RP) must be connected to SDA0 (or SDA1) and SCL0 (or SCL1).
• The SDA0 (or SDA1) and SCL0 (or SCL1) series resistance (Rs = 300Ω or less) can be used to reduce spike
noise caused by CRT flashover.
– 17 –
Page 18
(7) OSD timing(Ta = –10 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)
CXP858P56A
Item
OSD clock frequency
HSYNC pulse width
HSYNC after-write
rise and fall times
VSYNC before-write
rise and fall times
Fig. 11. OSD timing
For OSD I/O polarity register
HSYNC
(OPOL: 01FDh)
bit 7 at “0”
Symbol
fOSC
tHWD
tHCG
tVCG
PinCondiiton
EXLC
XLC
HSYNC
HSYNC
VSYNC
tVCG
Fig. 12
Fig. 11
Fig. 11
Fig. 11
tHWD
Min.Max.
4
16.5
1.2
200
1.0
tHCG
0.8VDD
0.2VDD
Unit
MHz
µs
ns
µs
For OSD I/O polarity register
VSYNC
(OPOL: 01FDh)
bit 6 at “0”
0.8VDD
0.2VDD
Fig. 12. LC oscillation circuit connection
EXLCXLC
∗
1
L
∗1
The XLC series resistor can reduce the frequency of occurrence of the undersired radiation.
R
2C1
C
– 18 –
Page 19
CXP858P56A
(8) Data slicer external circuit(Ta = –10 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)
Item
VIN pin coupling capacitance
Cap pin capacitance
PLL low-pass filter capacitance
Composite video signal input
SymbolPinMin.Unit
CVIN
Ccap
CLPF
Video In
VIN
Cap
LFC1,
LFC2
VIN
Fig. 13. Data slicer external recommeded circuit
Typ.Max.
0.1
4700
0.47
2.0
5.0V
CLPF
CVDD
LFC2
LFC1
µF
pF
µF
Vp-p
Remarks
The B characteristic or more
of temperature characteristics
is recommended.
The B characteristic or more
of temperature characteristics
is recommended.
The B characteristic or more
of temperature characteristics
is recommended.
C
VINR1
IN
V
Video In
C1R2
Cap
Ccap
CVss
[Recommended Constant]
R1 = 220Ω (error: 5%; allowable power dissipation: 1/8W or more)
R2 = 1MΩ (error: 5%; allowable power dissipation: 1/8W or more)
C1 = 1200pF (ceramic), the B characteristic or more of temperature characteristics is recommended.
– 19 –
Page 20
Appendix
A
A
Fig. 14. SPC700 Series recommended oscillation circuit
(i)
EXTAL
EXTAL
AA
AA
XTAL
XTAL
Rd
Rd
C2C1
CXP858P56A
Manufacturer
RIVER ELETEC
CO., LTD.
KINSEKI LTD.
∗1
The XTAL series resistor can reduce the effect of electrostatic discharge noise.
Products List
Option item
Package
Program ROM capacity
Reset-pin pull-up resistor
Power-on reset circuit
Font data