W99681CF Datasheet, PDF (13/78 Pages) Winbond – JPEG USB Dual Mode Camera Chip

W99681CF
UV[7:0]
2-9
HS
116
VS
115
VICLK
127
SDE#/SDS 112
SCLK
113
SDATA
114
I Digital UV (Chrominance) Inputs in 16-bit Mode, or Not Used in
8-bit Mode.
I Horizontal Sync Input. Programmable polarity.
I Vertical Sync Input. Programmable polarity.
I Input Video Clock.
O Serial Data Enable/Serial Data Strobe.
B Serial Interface Clock.
B Serial Interface Data.
Micro Controller Interface (21 pins)
Pin Name
AD[7:0]
A[15:8]
GPIO[7:0]
ALE
RD#
WR#
CS#
SANP#
INT#
Pin Number
21-24, 26-29
31-38
18
15
16
17
14
Type
B
I
B
I
IU
IU
IU
O
Description
Multiplexed Address/Data Bus.
EXTMCU = 1: High-order Address Bus.
EXTMCU = 0: General Purpose I/Os.
Address Latch Enable. ALE is used to enable the address latch
that separates the address from the data on AD bus.
Data Read Strobe.
Data Write Strobe.
EXTMCU = 1: Chip Select.
EXTMCU = 0: Snap Shot Input.
Interrupt Output, level-triggered.
Serial E²PROM Interface (2 pins)
Pin Name Pin Number
SCL
62
SDA/EEPRO 63
M
Type
O
B
Description
Serial Clock.
Serial Data/Serial E²PROM Detection. During a reset operation,
the W99681CF samples this signal to see if an external E²PROM
exists. A 10K ohm pull-up resistor should be used if an external
E²PROM is used; otherwise it should be tied to VSS.
Miscellaneous (11 pins)
Pin Name Pin Number
Type Description
- 13 -
Publication Release Date: March 2000
Revision A1