Harman Kardon HK 3390, Service Manual

Page: 56 / 74

T5CD2
1.4 Pin Names and Functions
Table 1-1 Pin Names and Functions(1/3)
Pin
Name
Pin
Number
Input
/
Output
Functions
P00-P07
AD0-AD7
8
IO
IO
Port 0: I/O port that allows I/O to be selected at the level
Address data (Lower): 0 to 7 address/data bus
P10-P17
AD8-AD15
A8-A15
8
IO
IO
O
Port1: I/O port that allows I/O to be selected at the bit level
Address data (Upper): 8 to 15 of address/data bus
Address: 8 to 15 of address bus
P20-P27
A0-A7
A16-A23
8
IO
O
O
Port 2: I/O port that allows I/O to be selected at the bit level
Address: 0 to 7 of address bus
Address: 16 to 23 of address bus
PZ0
RD
1
O
O
Port Z0: Output port
Read:Strobe signal for reading external memory
PZ1
WR
1
O
O
Port Z1: Output port
Write: Strobe signal for writing data to pins AD0 to AD7
PZ2
HWR
1
IO
O
Port Z2: I/O port (with pull-up resistor)
High write: Strobe signal for writing data to pins AD8 to AD15
PZ3
R/W
1
IO
O
Port Z3: I/O port (with pull-up resistor)
Read/Write: 1 represents Read or Dummy cycle; 0 represents Write cycle.
P30
TB3IN0
INT3
SDA0
1
IO
I
I
IO
Port 30: I/O port
16-bit timer 3 input 0:Timer B3 count/capture trigger Input 0
Interrupt Request Pin 3: Interrupt request pin with programmable rising edge / falling edge.
Serial bus interface data 0 in I2C bus Mode.
P31
TB3IN1
INT4
SCL0
1
IO
I
I
IO
Port 31: I/O port
16-bit timer 3 input 1:Timer B3 count/capture trigger Input 1
Interrupt Request Pin 4: Interrupt request on rising edge
Serial bus interface clock 0 in I2C bus Mode.
P32
WAIT
TB3OUT0
1
IO
I
O
Port 32: I/O port
Wait: Pin used to request CPU bus wait ((1 N) wait mode)
16-bit timer 3 output 0: Timer B3 Output 0
P33
TB3OUT1
1
IO
O
Port 33: I/O port
16-bit timer 3 output 1: Timer B3 Output 1
P40
CS0
SCOUT
1
IO
O
O
Port 40: I/O port (with pull-up resistor)
Chip Select 0: Outputs 0 when address is within specified address area
System Clock Output: Outputs f
FPH
or fs clock.
P41
CS1
TXD2
1
IO
O
O
Port 41: I/O port (with pull-up resistor)
Chip Select 1: Outputs 0 when address is within specified address area
Serial Send Data 2
P42
CS2
RXD2
1
IO
O
I
Port 42: I/O port (with pull-up resistor)
Chip Select 2: Outputs 0 when address is within specified address area
Serial Receive Data 2
P43
CS3
SCLK2
CTS2
1
IO
O
IO
I
Port 43: I/O port (with pull-up resistor)
Chip Select 3: Outputs 0 when address is within specified address area
Serial Clock I/O 2
Serial Data Send Enable 2 (Clear to Send)
P44
ALE
1
IO
O
Port 44: I/O port (with pull-up resistor)
Address Latch Enable
P50-57
AN0-AN7
8
IO
I
Port 5: I/O port
Analog input: Pin used to input to AD converter
56
HK3390
harman/kardon