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ICD-PX820/PX820D/PX820M
24
• IC Pin Function Description
MAIN BOARD (1/5) IC4541 LC823411-10S3-H (MEMORY CONTROL,SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
D5
EXA8(A7)
I/O
External memory address signal input/output 8
A1
TEST3
I
Test pin Fixed at "L".
C3
EXA9(A8)
I/O
External memory address signal input/output 9
B1
EXA10(A9)
I/O
External memory address signal input/output 10
D4
EXA11(A10)
I/O
External memory address signal input/output 11
E6
TEST4
I
Test pin Fixed at "L".
C1
EXA12(A11)
I/O
External memory address signal input/output 12
C2
TEST5
I
Test pin Fixed at "L".
D3
TEST6
I
Test pin Fixed at "L".
E5
TCK/JTAG TCK
I
JTAG test serial clock signal input Not used.(open)
D1
EXA13(A12)
I/O
External memory address signal input/output 13
D2
EXA14(A13)
I/O
External memory address signal input/output 14
E4
RTCK/JTAG RTCK
I
JTAG test returned serial clock signal input Not used.(open)
E3
NTRST/JTAG NRST
I
JTAG test reset signal input
E1
EXA15(A14)
I/O
External memory address signal input/output 15
F5
EXA16(A15)
I/O
External memory address signal input/output 16
E2
TDI/JTAG TDI
I
JTAG test serial data signal input Not used.(open)
F4
EXA17(A16)
I/O
External memory address signal input/output 17
F1
TMS/JTAG TMS
I
JTAG test mode select signal input Not used.(open)
F3
TDO/JTAG TDO
O
JTAG test serial data signal output Not used.(open)
F2
EXA18(A17)
I/O
External memory address signal input/output 18
G5
NRES/MCPU XRST
I
Reset signal input
G4
PHI/P11/BATT XEN/
UPG RESULT
O
Battery enable signal output
G3
EXA19(A18)
I/O
External memory address signal input/output 19
H4
EXTFIQ/P2F/
VBUS XDET
I
VBUS detect signal input
G1
VDD1
―
Digital power supply pin(+1.1V)
G2
VDD2
―
Digital power supply pin(+3.1V)
H1
VSS
―
Digital ground pin
H3
SCKO/PO8/
SPIO CLK
O
SPIO serial clock signal output
H2
EXA20(A19)
I/O
External memory address signal input/output 20
J1
SDO0/PO9/
SPIO MOSI
SPIO MOSI
O
SPIO serial data signal output
H5
SDI0/P0A/SPI0 MISO
I
SPIO serial data signal input
J3
EXA21/P2E
I/O
External memory address signal input/output Not used.(Open)
J2
SCK1/P14/
CHG EN CLK
O
Charge enable serial clock signal output Not used.(Open)
K1
SDO1/P15/GPIO P15
O
VBUS power supply control signal output
J4
SDI1/P16/SP PWR
O
Speaker power supply control signal output
J5
TXD1/P2A/ADA PWR
O
Adapter power supply control signal output
K2
RXD1/P2B/
RTC XSTBY
O
RTC power backup control signal output
L1
TCLKA/P17
O
Serial clock signal output Not used.(Open)
K3
TCLKA/P18
O
Serial clock signal output Not used.(Open)
K4
TIOCA0/P19/
CHGADC XCS
I
Charge measurement ADC CS pin Not used.(Open)
L2
TIOCB0/P1A
I
Not used. (Open)
M1
TIOCA1/P1B/
SCPU CS
O
SCPU SPI CS pin
K5
TIOCB1/P1C
I
Not used. (Open)
L3
VDD1
―
Digital power supply pin (+1.1V)
M2
VDD2
―
Digital power supply pin (+3.1V)
N1
VSS
―
Digital ground pin
L4
TXD0/P1D/
UART TXD
I/O
UART transmission data input/output for test mode
M3
RXD0/P1E/
UART RXD
UART RXD
I/O
UART receive data input/output for test mode
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