p87c770aar NXP Semiconductors, p87c770aar Datasheet - Page 69

• Manufacturer Part Number: p87c770aar
• Description: Microcontrollers Ntsc With On-screen Display Closed Caption
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 107 Programming configuration pin descriptions
1999 Jun 11
P0.0 to P0.7
P1.0/AFT0
P1.1/AFT1
P1.2/AFT2
P1.3/PWM0
V
P2.7 to P2.0
V
CVBS
STN
BLK
IREF
PSEN
V
ALE/PROG
P1.4
REFH
B
G
R
FB
HSYNC
VSYNC
V
V
V
XO
XI
RESET
V
P3.0 to P3.7
SSD
SSA
PP
DDA
DDP
SSD
DDC
Microcontrollers for NTSC TVs with On-Screen
Display (OSD) and Closed Caption (CC)
SYMBOL
/EA
14 to 21
45 to 52
1 to 8
PIN
10
12
13
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
11
9
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
address lines A8 to A15
Port line P1.0; alternative function as 4-bit AFT0 input
Port line P1.1; alternative function as 4-bit AFT1 input
Port line P1.2; alternative function as 4-bit AFT2 input
Port line P1.3 (open-drain, bidirectional); alternative function as 7-bit PWM
output
digital ground
address lines A7 to A0
analog ground
composite video input
Data Slicer decoupling capacitor input, connect to V
CVBS signal black level reference, connect to V
CVBS signal reference current input, connect to V
Program Store Enable (active LOW) is bonded out for testing purpose only.
External Access (active LOW) is bonded out for testing purpose only; this pin is
also used for the 12.75 V programming voltage supply in program/font OTP
programming modes.
Address Latch Enable is bonded out for testing purposes only; this pin is also
used for programming pulses input in program/font OTP programming modes.
Port line P1.4 (open-drain, bidirectional)
Data Slicer reference high capacitor input, connect to V
capacitor.
CC/OSD Blue colour current output
CC/OSD Green colour current output
CC/OSD Red colour current output
CC/OSD fast blanking output
TV horizontal sync input (for OSD synchronization)
TV vertical sync input (for OSD synchronization)
5 V analog power supply
5 V digital power supply
digital ground
system oscillator crystal output
system oscillator crystal input
reset input (active HIGH)
5 V digital power supply
data I/O lines, D0 to D7
69
DESCRIPTION
SSA
SSA
SSA
via a 100 nF capacitor.
via a 27 k resistor.
P8xCx70 family
SSA
via a 100 nF capacitor.
via a 100 nF
Product specification