Samsung SF-530 Service Manual page 95

Signal
RXD0/GIP[0]
RXD1/GIP[1]
RXD2/GIP[2]
nEINT0/GIP[3]
nEINT1/GIP[4]
nEINT2/GIP[5]
nXDREQ/GIP[6]
TXD0/GOPA[0]
TXD1/GOPA[1]
TXD2/GOPA[2]
nXDACK/GOPA[5]
TONEOUT/GOPA[3]
nWDTO/GOPA[4]
nIOWR/GOPA[10]
nIORD/GOPA[9]
CLKOUT/GOPA[6]
nECS2/GOPA[8]
TCK
TMS
TDI
nTRST
TDO
137~140,
GIOP[10:0]
TEST0
TEST1
TEST2
Samsung Electronics
Pin No. I/O Type
Receive data input for the UART0. RXD0 is the UART0
194 I1
channel's input signal for receiving serial data.
Receive data input for the UART1. RXD1 is the UART1
192 I1
channel's input signal for receiving serial data.
Receive data input for the UART2. RXD2 is the UART2
190 I1
channel's input signal for receiving serial data.
8 I3 External interrupt request input nEINT0.
9 I3 External interrupt request input nEINT1.
10 I3 External interrupt request input nEINT2.
199 I3 External DMA request.
Transmit data output for the UART0. TXD0 is the UART0
193 O1
channel's output for transmitting serial data.
Transmit data output for the UART1. TXD1 is the UART1
191 O1
channel's output for transmitting serial data.
Transmit data output for the UART2. TXD2 is the UART2
189 O1
channel's output for transmitting serial data.
External DMA acknowledge. This active low output signal is
200 O1
generated whenever a DMA transfer is completed.
188 O1 Tone generator output.
187 P3 Reset out by watch dog timer.
161 O1 External output write strobe
162 O1 External output read strobe
180 O1 Clock for external chip
14 O1 External memory chip select 2.
132 I2 JTAG TCK interface in MDS mode.
135 I2 JTAG TMS interface in MDS mode.
133 I2 JTAG TDI interface in MDS mode.
136 I2 JTAG nTRST interface in MDS mode.
134 O1 JTAG TDO interface in MDS mode.
I/O4 General I/O port.
173~179
Test 0 pin. At normal operation this pin must be connected
169 I2
to GND.
Test 1 pin. At normal operation this pin must be connected
170 I2
to GND.
Test 2 pin. At normal operation this pin must be connected
171 I2
to GND.
CIRCUIT DESCRIPTION
Description
Repair Manual
3-5