CS6208
Myson/Century Inc.
Pin Name
I/O
Pin #
Description
// TXC/CRS/COL/RXC/RXD are input.
LED1/TXE
LED2/TXD
TXC
O/O
O/O
O/I
O/I
O/I
O/I
O/I
P
110
111
112
113
114
115
116
109
117
Transmit Enable.
TRansmit Data.
Transmit CLock.
Carrier Sense.
Receive Clock.
Receive Data.
CRS
RXC
RXD
COL
Collision Indicator.
VDDI2
VSSI2
Vdd for 7-wire IO pads and T10PMD's Digital blocks.
Vss for 7-wire IO pads and T10PMD's Digital blocks.
P
// SRAM power pins
VDDM
P
P
42/56
41/54
Vdd for SRAM.
Vss for SRAM.
VSSM
// ADC
AIN[3:0]
REFH
I
86-89
90
Analog Input signals.
I
High level voltage reference. Connect to 2.0V source.
Low level voltage reference. Connect to 1.2V source.
Vdd for ADC.
REFL
I
91
VDDADC
VSSADC
P
P
85
92
Vss for ADC.
Pins 51, 52, 79, 80, 81, 84, 107, and 108 are No Connects (NC) and must be left floating.
Port Functions:
P0: Standard 8051 data bus expansion, always dedicated to DATA[7:0] on the CS6208. Replaced by
port C.
P1 and P3: Standard 8051 I/O ports.
P2: Standard 8051 high address output, always dedicated to ADDR[15:8] on the CS6208. Replaced by
port B.
P5: Standard 8051 low address output, dedicated to ADDR[7:0] when using expanded memory mode.
Can be used as an 8bit programmable I/O port A when in expanded memory mode (pin EA = 0).
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