W79E217A Datasheet, PDF (47/207 Pages) Winbond – 8-bit Microcontroller

Preliminary W79E217A Data Sheet
SERIAL DATA BUFFER 1
Bit:
7
6
5
4
3
2
1
0
SBUF_1.7 SBUF_1.6 SBUF_1.5 SBUF_1.4 SBUF_1.3 SBUF_1.2 SBUF_1.1 SBUF_1.0
Mnemonic: SBUF1
Address: C1h
BIT NAME
FUNCTION
7-0 SBUF_1
For Serial Port 1. Serial data is read from or written to this location. It actually
consists of two separate 8 bit registers. One is the receive buffer, and the other
is the transmit buffer. Any read access gets data from the receive data buffer,
while write access is to the transmit data buffer.
TIMER 3 MODE CONTROL
Bit:
7
6
5
4
3
2
1
0
ENLD
ICEN2
ICEN1
ICEN0
T3CR
-
-
-
Mnemonic: T3MOD
Address: C2h
BIT NAME
FUNCTION
7 ENLD
Enable reloads from RCAP3 registers to timer 3 counters.
6 ICEN2
Capture 2 External Enable. This bit enables the capture/reload function on the
IC2 pin. An edge trigger (programmable by CAPCON0.CCT2[1:0] bits) detected
on the IC2 pin will result in capture from free running timer 3 counters to input
capture 2 registers, or reload from RCAP3 registers to timer 3 counters.
1 = Enable.
0 = Disable.
5 ICEN1
Capture 1 External Enable. This bit enables the capture/reload function on the
IC1 pin. An edge trigger (programmable by CAPCON0.CCT1[1:0] bits) detected
on the IC1 pin will result in capture from free running timer 3 counters to input
capture 1 registers, or reload from RCAP3 registers to timer 3 counters.
1 = Enable.
0 = Disable.
4 ICEN0
Capture 0 External Enable. This bit enables the capture/reload function on the
IC0 pin. An edge trigger (programmable by CAPCON0.CCT0[1:0] bits) detected
on the IC0 pin will result input capture from free running timer 3 counters to input
capture 0 registers, or reload from RCAP3 registers to timer 3 counters.
1 = Enable.
0 = Disable.
3 T3CR
Timer 3 Capture Reset. In the Timer 3 Capture Mode this bit enables/disables
hardware automatically reset timer 3 while the value in TL3 and TH3 have been
transferred into the input capture register (CCLx, CCHx). Priority is given to
T3CR to reset counter after capture.
2-0 -
Reserved.
- 47 -
Publication Release Date: December 14, 2007
Revision A3.0