Sony CXP85890A Datasheet
Description
The CXP85890A is a CMOS 8-bit single chip microcomputer of biggyback/evaluator combined type,
which is developed for evaluating the function of the
CXP85840A/ 85848A/ 85856A.
For the CXP85890A, the custom font is supported.
Features
• A wide instruction set (213 instructions) which covers
various types of data
– 16-bit operation/multiplication and division/ Boolean
bit operation instructions
• Minimum instruction cycle 333ns at 12MHz operation
• Applicable EPROM
LCC type 27C512 (Maximum 56K bytes are available.)
• Incorporated RAM 2176 bytes (Excludes closed caption decoder and VRAM for on-screen display)
• EPROM for custom font
LCC type 27C512 (Maximum 6K bytes are available.)
• Peripheral functions
– A/D converter 8-bit 6-channel successive approximation method
(Conversion time of 26.7µs at 12MHz)
– Serial interface 8-bit clock sync type, 1 channel
– Timer 8-bit timer
8-bit timer/counter
19-bit time-base timer
– Closed caption decoder Data slicer
Corresponds to FCC (EDS supported), 8 × 13 dots, 192 character types
15 character colors, 4 lines × 34 characters
frame background 15 colors/ half blanking
italic, underline, vertical scrolling
– On-screen display (OSD) function 12 × 16 dots, 192 character types, 15 character colors
2 lines × 24 characters
frame background 8 colors/ half blanking
background on full screen 15 colors/ half blanking
edging and vertical scrolling for every line
jitter elimination circuit
sprite OSD, 12 × 16 dots, 1 screen, 8 colors for every dot
– I2C bus interface
– PWM output 8 bits, 8 channels
– Remote control reception circuit 8-bit pulse measurement counter, 6-stage FIFO
– HSYNC counter 2 channels
– Watchdog timer
• Interruption 15 factors, 15 vectors, multi-interruption possible
• Standby mode Sleep
• Package 64-pin ceramic PSDIP (Supports custom font)
Note) Mask option is fixed by the CXP85890A. Refer to the Products List for details.
Perchase of Sony's I2C components conveys a licence under the Philips I2C Patent Rights to use these components
in an I2C system, provided that the system conforms to the I2C Standard Specifications as defined by Philips.
– 1 –
CXP85890A
E97829-PS
CMOS 8-bit Single Chip Microcomputer
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.
64 pin PSDIP (Ceramic)
Structure
Silicon gate CMOS IC
Piggyback/
evaluator type
– 2 –
CXP85890A
40
39
38
37
36
35
34
33
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
63
64
61
62
31
32
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
V
SS
VDD
NC
EXLC
XLC
YM
YS
I
B
G
R
PB0
PB1
PB2
PB3
PB4
PC4
PC5
PC6
PC7
PF0/PWM0
PF1/PWM1
PF2/PWM2
PF3/PWM3
PF4/SCL0/PWM4
PF5/SCL1/PWM5
PF6/SDA0/PWM6
PF7/SDA1/PWM7
PE0/TO
PE1
PE2/INT0
MP
HS0/PD4
PC3
PC2
PC1
PC0
EC/PD7
RMC/PD6
HS1/PD5
SI/PD3
SO/PD2
SCK/PD1
INT2/PD0
HSYNC/PA7
VSYNC/PA6
RST
V
SS
PA0/AN0
XTAL
EXTAL
PA5/AN5
PA4/AN4
PA3/AN3
PA2/AN2
PA1/AN1
CV
SS
LFC2
LFC1
VIN
CV
DD
Cap
INT1/PB6
PB5
D1 A7
D2
A12
GND
A15
NC
NC
D3
VDD
D4 A14
D5
A13
A6
A5
A4
A3
A2
A1
A0
NC
D0
A8
A9
A11
NC
OE
A10
CE
D7
D6
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26 27
28
29
1
31
32
30
For custom font
D1 A7
D2
A12
GND
A15
NC
NC
D3
VDD
D4 A14
D5
A13
A6
A5
A4
A3
A2
A1
A0
NC
D0
A8
A9
A11
NC
OE
A10
CE
D7
D6
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26 27
28
29
1
31
32
30
For custom font
D1 A7
D2
A12
GND
A15
NC
NC
D3
VDD
D4 A14
D5
A13
A6
A5
A4
A3
A2
A1
A0
NC
D0
A8
A9
A11
NC
OE
A10
CE
D7
D6
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27 28
29
1
31
32
30
For programming
Pin Assignment in Piggyback Mode (Top View)
Note) 1. NC (Pin 46) is always connected to VDD.
2. VSS (Pins 16 and 48) are both connected to GND.
3. MP (Pin 49) is always connected to GND.
– 3 –
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