Marantz ZR6001 Service Manual page 87

IC21 : C80F9XJU
P0.0-0.3 (INT0-INT3)
P1.0-P1.7
P0.4-P0.7 (INT4)
LVD Port 0
V
DD
MAIN
X
IN
OSC
X
OUT
I/O Port and Interrupt
8-Bit
Control
Basic
Timer
8-Bit
Timer/
Counter SAM87RC
CPU
16-Bit
Timer/
Counter
317-Bytes
32K-Bytes
Register
ROM
File
Pin Pin Pin Description
Names Type
P0.0–P0.7 I/O I/O port with bit-programmable pins.
Configurable to input or push-pull output
mode. Pull-up resistors are assignable by
software. Pins can be assigned individually as
external interrupt inputs with noise filters,
interrupt enable/ disable, and interrupt pending
control. SED & R circuit built in P0 for STOP
releasing.
P1.0–P1.7 I/O I/O port with bit-programmable pins.
Configurable to input mode or output mode.
Pin circuits are either push-pull or n-channel
open-drain type.
P2.0–P2.3 I/O I/O port with bit-programmable pins.
P2.4–P2.7 Configurable to input or push-pull output
mode. Pull-up resistors can be assigned by
software. Pins can be assigned individually as
external interrupt inputs with noise filters,
interrupt enable/disable, and interrupt pending
control. SED & R circuit built in P2 for STOP
releasing.
P3.0 I/O 2-bit I/O port with bit-programmable pins.
P3.1 Configurable to input mode, push-pull output
mode, or n-channel open-drain output mode.
Input mode with pull-up resistors can be
assigned by software. The two port 3 pins
have high current drive capability.
X , X – System clock input and output pins
IN OUT
I System reset signal input pin and back-up
RESET
mode input.
TEST I Test signal input pin (for factory use only;
must be connected to V ).
SS
V – Power supply input pin
DD
V – Ground pin
SS
TEST
Port 1
RESET
P2.0-2.3 (INT5-INT8)
Port 2
P2.4-2.7 (INT9)
P3.0-T0PWM/
T0CAP/(T1CAP)
P3.1-REM/(T0CK)
Port 3 P3.2/(T0CK)
P3.3/(T1CAP)
P3.4-3.5
Port 4
P4.0-4.7
Carrier
Registor
(Counter A)
Circuit 32 Pin Shared
Type No. Functions
1 17–24 Ext. INT
2 9–16 –
1 25–28 Ext. INT
29,5, 6,8
3 30,31 T0PWM/
4 T0CAP/T1CAP
REM/T0CK
– 2,3 –
8 7 –
– 4 –
– 32 –
– 1 –
105
IC22 : TC74VHC157FT PLC MODULE : MLD 011TM
106