Owner manual

CS4954 CS4955

DS278F6 57

NOTE: 1. The FIELD pin (pin 9) remains an output pin in SLAVE mode. However, the FIELD pin state does not

toggle in SLAVE mode and its output state should be considered random.

Pin Name Pin Number Type Description

V [7:0] 8, 7, 6, 5, 4, 3, 2, 1 IN Digital video data inputs

CLK 29 IN 27 MHz input clock

PADDR 16 IN Address enable line

XTAL_IN 15 IN subcarrier crystal input

XTAL_OUT 14 OUT subcarrier crystal output

HSYNC

/CB

10 I/O Active low horizontal sync, or composite blank signal

VSYNC

11 I/O Active low vertical sync.

FIELD/CB

(1)

9OUT

(1)

Video field ID. Selectable polarity or composite blank

27 IN Host parallel port read strobe, active low

28 IN Host parallel port write strobe, active low

PDAT [7:0] 19, 20, 21, 22, 23, 24, 25, 26 I/O Host parallel port/ general purpose I/O

SDA 32 I/O I²C data

SCL 33 IN I²C clock input

CVBS 44 CURRENT Composite video output

Y 48 CURRENT Luminance analog output

C 47 CURRENT Chrominance analog output

R 39 CURRENT Red analog output

G 40 CURRENT Green analog output

B 43 CURRENT Blue analog output

VREF 38 I/O Internal voltage reference output or external reference

input

ISET 37 CURRENT DAC current set

TTXDAT 30 IN Teletext data input

TTXRQ 31 OUT Teletext request output

INT 12 OUT Interrupt output, active high

RESET

34 IN Active low master RESET

TEST 13 IN TEST pin. Ground for normal operation

VAA 36, 41, 46 PS + 5 V or + 3.3 V supply (must be same as VDD)

GNDD 18 PS Ground

VDD 17 PS +5 V or 3.3 V supply (must be same as VAA)

GNDA 35, 42, 45 PS Ground

Table 10. Device Pin Descriptions