ES6688A Device Interfaces
Name Pin Numbers I/O Definition
Audio Port Interface
101 I Audio receive serial data input (RSD); (5V tolerant input).
102 I Audio receive bit clock input (RBCK); (5V tolerant input).
103 I Audio receive frame sync input (RWS); (5V tolerant input).
116 O Audio transmit frame sync
output (TWS).
117,
118, 120,
121
O Audio transmit serial data outputs (TSD[3:0]).
122 I/O Audio DAC master clock (MCLK).
123 O Audio transmit bit clock output (TBCK).
124 O Sony/Philips Digital Interface audio output (SPD_DOBM).
125 I Sony/Philips Digital Interface audio input (SPDIF_IN); (5V tolerant input).
Auxiliary Port Interfac
e
193 O Extended auxilliary ports (EAUX3).
194-19
6 I/O Extended auxilliary ports (EAUX2-0); (5V tolerant input).
199, 20
0 I/O Open collector auxilliary ports (AUX1, 0); (5V tolerant input).
201-20
6 I/O Primary auxiliary port I/Os (AUX7-2); (5V tolerant input).
Clock Interface
and Rese
t
2 I 27-MHz crystal clock input (VID_XI)
.
3 O 27-MHz crystal clock output (VID_XO).
4 I System clock (CLK).
29
O DRAM clock enable output (DSCK_EN).
51 O Output clock (DSCK) to video memory (DRAM).
116:118 I Clock frequency select PLL outputs (SEL_PLL[2:0]).
207 I Reset input (active-low) (RESET#); (5V tolerant input)
.
Display
Interface
106:110, 113:115 O Pixel data outputs (YUV[7:0]).
201 I/O Horizontal sync (HSYNC#); (5V tolerant input).
202 I/O Vertical sync (VSYNC#); (5V tolerant input).
CCIR656 Output Port
Interface
106:
110, 113:115 O CCIR656 output pixels [7:0]; [PIXOUT[7:0]].
83
O CCIR656 output pixel clock [PIXOUT_CLK].
EPROM/Flash ROM
and RISC Port
Interface
55:60, 63:69,
72:77, 80:8
2
O RISC port address bus (LA[21:0]) to EPROM or Flash memory
.
83:85
O RISC port chip select outputs (LCS[2:0]#) to EPROM or Flash memory.
89
O
RISC port low-byte write enable output (LWRLL#) to EPROM or Flash
memory.
90 O RISC port output enable (LOE#) to EPROM and Flash memory
.
91:94, 97:100 I/O
RISC port data bus (LD[7:0]) to EPROM or Flash memory; (5V tolerant
input).
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