Harman Kardon AVR 1650, Service Manual

Page: 91 / 159

T5CN5
Table 2.2 Pin Names and Functions Sorted by Pin (2/5)
Type
# of
Pins
Pin Name
Input/
Output
Function
Programm
able
Pull-up/
Pull down
Schmitt
trigger
Programma
ble Open
Drain
Output
Function
20
PE0
TXD0 I/O
O I/O port
Sending serial data
Pull up -
21
PE1
RXD0 I/O
I I/O port
Receiving serial data
Pull up
22
PE2
SCLK0
CTS0 I/O
I
I I/O port
Serial clock input/ output
Handshake input pin
Pull up
23
PE4
TXD1 I/O
O I/O port
Sending serial data
Pull up -
24
PE5
RXD1 I/O
I I/O port
Receiving serial data
Pull up
25
PE6
SCLK1
CTS1 I/O
I
I I/O port
Serial clock input/ output
Handshake input pin
Pull up
26
PG0
SDA0/
SO0 I/O
I/O
O I/O port
If the serial bus interface operates
-in the I2C mode : data pin
-in the SIO mode: data pin
Pull up
27
PG1
SCL0/
SI0 I/O
I/O
I I/O port
If the serial bus interface operates
-in the I2C mode : clock pin
-in the SIO mode: data pin
Pull up
28
PG2
SCK0 I/O
I/O I/O port
Inputting and outputting a clock if the
serial bus interface operates in the SIO
mode.
Pull up
29 PB3 I/O I/O port Pull up - -
Function/
Control
30
PH0
TB0IN0
BOOT
I/O
I
I
I/O port
Inputting the timer B capture trigger
Setting a single boot mode: This pin
goes into single boot mode by sampling
"L" at the rise of a reset signal. Pull up -
Function
31
PH1
TB0IN1 I/O
I I/O port
Inputting the timer B capture trigger
Pull up -
32
PH2
TB1IN0 I/O
I I/O port
Inputting the timer B capture trigger
Pull up
-
33
PF0
TXD2 I/O
O I/O port
Sending serial data
Pull up -
34
PF1
RXD2 I/O
I I/O port
Receiving serial data
Pull up
35
PF2
SCLK2
CTS2 I/O
I
I I/O port
Serial clock input/ output
Handshake input pin
Pull up
36
PH3
TB1IN1 I/O
I I/O port
Inputting the timer B capture trigger
Pull up
-
37 PB4 I/O I/O port Pull up - -
38
PI0
TB0OUT I/O
O I/O port
Timer B output
Pull up - -
39
PJ6
INT6 I/O
I I/O port
Interrupt request pin
Pull up
w/ noise filter
AVR 1650 harman/kardon
91