32
A-S801
A
-S80
1
Pin
No.
Port Name
Function Name
（
P.C.B.
）
I/O
Detail of Function
P
o
w
er On
Standb
y
M
C
U
S
le
ep
[A
C OFF]
1
P9_6/ANEX1/SOUT4
HP_DET
2
P9_5/ANEX0/CLK4
TRIG
O
O
O
3
P9_4/DA1/TB4IN
MPLED
O
O
O
LED control for MAIN POWER ON display
4
P9_3/DA0/TB3IN
EXT_N_RST
5
P9_2/TB2IN/SOUT3
EXT_MOSI
6
P9_1/TB1IN/SIN3
EXT_N_CE
7
P9_0/TB0IN/CLK3
EXT_SCK
8
BYTE
BYTE
MCU
MCU
MCU Connect to Vss when in the single chip mode (External data bus width change: 16 bit)
9
CNVss
CNVSS
MCU
MCU
MCU Low: processor mode select: single chip mode
Hi: To the FLASH included boot mode
10
P8_7/XCIN
DAC_STATUS
11
P8_6/XCOUT
ZPLED
O
O
O
12
RESET
N_RST
MCU
MCU
MCU Reset input
13
Xout
XOUT
MCU
MCU
MCU Main clock 20MHz output
U
C
M
U
C
M
U
C
M
S
S
V
s
s
V
4
1
p
n
i
z
H
M
0
2
k
c
o
l
c
n
i
a
M
U
C
M
U
C
M
U
C
M
N
I
X
n
i
X
5
1
ut
16
Vcc1
VCC
MCU
MCU
MCU
17
P8_5/NMI/SD
* Nch Open Drain
NMI
MCU
MCU
MCU Unused, Pull Up
18
P8_4/INT2/ZP
KEY1_N_INT
IRQ
IRQ
I
19
P8_3/INT1
MPSW
20
P8_2/INT0
REM
21
P8_1/TA4IN/U/CTS5/
RTS5
DIR_N_RST
22
P8_0/TA4OUT/U//RXD5/
SCL5
DIR_MISO
23
P7_7/TA3IN/CLK5
DIR_SCL
24
P7_6/TA3OUT/TXD5/
SDA5
DIR_MOSI
DIR_N_INT
25
P7_5/TA2IN/W
26
P7_4/TA2OUT/W
FW_DATA
27
P7_3/CTS2/RTS2/TA1IN/
V
FW_WCL
28
P7_2/CLK2/TA1OUT/V
DIR_N_CS
29
P7_1/RXD2/SCL2/TA0IN/
TB5IN
* Nch Open Drain
TU_SCL
30
P7_0/TXD2/SDA2/
TA0OUT
* Nch Open Drain
TU_SDA
31
P6_7/TXD1/SDA1
TXDF
32
P6_6/RXD1/SCL1
RXDF
33
P6_5/CLK1
CLKF
34
P6_4/CTS1/RTS1/CTS0/
CLKS1
BSY
35
P6_3/TXD0/SDA0
DAC_SDA
36
P6_2/RXD0/SCL0
DAC_SCL
37
P6_1/CLK0
DAC_N_RST
38
P6_0/CTS0/RTS0
MI_SEL
39
P5_7/RDY/CLKOUT
Z2VOL_DATA
40
P5_6/ALE
Z2VOL_CLK
41
P5_5/HOLD
N_EPM
I
-
-
For writing FLASH (Low)
Pull it down as it may fall in the Hiz state while the emulator is working
42
P5_4/HLDA
SPBRY
43
P5_3/BCLK
SPARY
44
P5_2/RD
HPRY
45
P5_1/WRH/BHE
USB_N_OCPRT
46
P5_0/WRL/WR
N_CE
I
-
-
For writing FLASH (Hi)
47
P4_7/TXD7/SDA7/
/CS3
EEP_SDA
48
P4_6/RXD7/SCL7/
CS2
EEP_SCL
49
P4_5/CLK7/CS1
EVOL_DATA
50
P4_4/CTS7/RTS7/CS0
EVOL_CLK
Headphone detection terminal
C12V control
EXT IC reset signal
EXT IC serial data
EXT IC chip select
EXT IC serial clock
PCM-DSD change selector
LED control for ZONE2 POWER ON display
Tuner operation SW/ZONE2 POWER SW detection interrupt input Read KEY1 voltage by this interrupt
MAIN POWER SW detection input
Remote control pulse detection interrupt input
DIR reset terminal
Reception data from DIR
DIR communication clock
Transmission data for DIR
Error output from DIR
CD/DA firmware update data via SPDIF
CD/DA firmware update word clock via SPDIF
TUNER I2C communication bus clock
TUNER I2C communication bus data
DAC control data
DAC control serial clock
For easy emulation
For writing FLASH (Rx)
For easy emulation
For writing FLASH (Tx)
For easy emulation
For writing FLASH (Clock)
For easy emulation
BUSY signal output for writing FLASH
CS signal of DIR
I
I
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
DAC reset terminal
O
O
O
Analog SW IC output change signal
O
O
O
O
O
O
O
O
O
O
O
O
SO
O
O
SO
O
O
SO
O
O
SO
I
I
SO
I
I
SO
I
I
EEPROM I2C communication bus clock
SO
I
I
Electronic VOLUME control serial data
SO
O
O
Electronic VOLUME control serial clock
SO
O
O
SIO
I
I
ZONE2 electronic VOLUME control serial daga
SIO
I
I
EEPROM I2C communication bus data
SIO
I
I
ZONE2 electronic VOLUME control serial clock
Speaker B relay control
O
O
O
Speaker A relay control
O
O
O
Headphone relay control
SO
O
O
SO
SO
O
SO
SO
O
SI
SI
O
I
O
O
I
O
O
I
O
O
SI
O
O
I
I
I
USB over current detection terminal
I
I
I
IRQ
IRQ
IRQ
