XV-EV51
119
5
6
7
8
5
6
7
8
C
D
F
A
B
E
No.
Port Name
Pin Name
I/O
Function
81
PB6/D6
DSP EXP OE
O
Output enable for EXPAND (no use)
82
PB5/D5
CSCS
O
Chip select for CRISTAL's DSP
83
PB4/D4
CSREQ
I
Request for CRISTAL's DSP
84
PB3/D3
FS96
I
96k input fron CODEC
85
PB2/D2
ABOOT
O
Chip select for SRAM / P2ROM
86
PB1/D1
CSRST
O
RESET for CRISTAL's DSP
87
PB0/D0
CDCS
O
Chip select for CODEC
88
VSS3
−
−
Ground
89
VDD3
−
−
Power supply
90
PC7/A7
CDPDN
O
Power down (RESET) for CODEC
91
PC6/A6
SYSPOW
O
Control power supply of system
92
PC5/A5
PROTECT
I
Protection and Fan Error detection input
93
PC4/A4
SPCONT
O
Control relay of speaker output
94
PC3/A3
SYSMUTE
O
Control mute of system
95
PC2/A2
VOLCE
O
Chip enable for E-vol IC
96
PC1/A1
VOLCLK
O
Clock for E-vol IC
97
PC0/A0
VOLDATA
O
Data for E-vol IC
98
PA0/CS2#
FLASH E/D
−
for FLASH writing
99
PA1/CS1#
FLASH DO
−
for FLASH writing
100 PA2/CS0#
FLASH CLK
−
for FLASH writing
• Port 0 (P00-P07) can be selected for input or output by each 4 bits (P00-P03, P04-P07).
Set for input when reset. And it can be set C-MOS or Nch-OD by each 1 bit in option.
• Port 1 (P10-P17) can be selected for input or output by each 1 bit. Set for input when reset.
And it can be set C-MOS or Nch-OD by each 1bit in option.
• Port 2 (P20-P27) can be selected for input or output by each 1 bit. Set for input when reset.
And it can be set C-MOS or Nch-OD by each 1 bit in option.
• Port 3 (P30-P36) can be selected for input or output by each 1 bit. Set for input when reset.
And it can be set C-MOS or Nch-OD by each 1 bit in option.
• Port 7 (P70-P73) can be selected for input or output by each 1 bit. Set for input when reset.
• Port 8 (P80-P87) can be selected for input or output by each 1 bit. Set for input when reset.
• Port A (PA0-PA5) can be selected for input or output by each 1 bit. Set for input when reset.
And it can be set C-MOS or Nch-OD by each 1 bit in option.
• Port B (PB0-PB7) can be selected for input or output by each 1 bit.
Set for input when reset. And it can be set C-MOS or Nch-OD by each 1 bit in option.
• Port C (PC0-PC7) can be selected for input or output by each 1 bit.
Set for input when reset. And it can be set C-MOS or Nch-OD by each 1 bit in option.
• Port E and PortF can be selected for input or output by each 2 bits.
• In case of without RDS, it is best that RDSDATA and RDSCLK are assigned as I/O port which can be set output and output low level.
• Port 0 cannot output High level during HALT mode.
