Rainbow Electronics W79E8213R - Manual (Page 7)

Preliminary W79E8213/W79E8213R Data Sheet
Publication Release Date: July 11, 2008
- 7 - Revision A2
5. PIN DESCRIPTIONS
SYMBOL
ALTERNATE
FUNCTION 1 ALTERNATE
FUNCTION 2 ALTERNATE
FUNCTION 3
ALTERNATE
FUNCTION 4
(ICP MODE)
TYPE DESCRIPTIONS
VDD P
POWER SUPPLY: Supply voltage
for operation.
VSS P GROUND: Ground potential.
P0.0 AD6 PWM3 I/O
P0.1 AD5 PWM0 I/O
P0.2 AD4 BRAKE I/O
P0.3 AD0 I/O
P0.4 AD1 Data I/O
P0.5 AD2 Clock I/O
P0.6 AD3 I/O
P0.7 AD7 T1 I/O
Port0:
Support 4 output modes and
TTL/Schmitt trigger.
Multifunction pins for T1, PWM0,
PWM3, BRAKE, AD0-7, Data
and Clock (for ICP).
P1.0 BUZ ED0 I/O
P1.1 ED1 I/O
P1.2 ED2 T0 I/O
P1.3 /INT0 I/O
P1.4 STADC /INT1 I/O
P1.5 ST R
HV I
P1.6 PWM1 I/O
P1.7 PWM2 I/O
Port1:
Support 4 output modes and
TTL/Schmitt trigger (except for
P1.5 input only).
Multifunction pins for /RST, T0,
/INT0-1, BUZ, PWM1-2, ED0-2,
STADC, and HV (for ICP).
P1.0-P1.7 have 40mA high sink
capability.
P2.0 XTAL2/CLKOUT I/O
CRYSTAL2: This is the crystal
oscillator output. It is the
inversion of XTAL1. Also a
configurable i/o pin.
When operating as I/O, it
supports 4 output modes and
TTL/Schmitt trigger.
P2.1 XTAL1 I/O
CRYSTAL1: This is the crystal
oscillator input. This pin may be
driven by an external clock or
configurable I/O pin.
When operating as I/O, it
supports 4 output modes and
TTL/Schmitt trigger.
* TYPE: P: power, I: input, O: output, I/O: bi-directional, H: pull-high, L: pull-low, D: open-drain.
Table 5-1: Pin Descriptions
Note:
On power-on-reset, all port pins will be tri-stated.
After power-on-reset, all port pins state will follow CONFIG0.PRHI bit definition.