MG74PG1A08 Datasheet, PDF (26/127 Pages) Megawin Technology Co., Ltd – Interrupt controller

AUXR0: Auxiliary Register 0
SFR Attribute = Normal Read/Write
SFR Address = 0xA1
7
6
5
P17OC1 P17OC0
GF
R/W
R/W
R/W
RESET = 0000-0000
4
3
2
T0XL
P1FS1 P1FS0
R/W
R/W
R/W
1
INT1H
R/W
0
INT0H
R/W
Bit 7~6: P1.7 function configured control bit 1 and 0. The two bits only act when internal RC oscillator (IHRCO or
ILRCO) is selected for system clock source. In external clock input mode, P1.7 is the dedicated clock input pin. In
internal oscillator condition, P1.7 provides the following selections for GPIO or clock source generator. When
P17OC[1:0] index to non-P1.7 GPIO function, P1.7 will drive the on-chip RC oscillator output to provide the clock
source for other devices.
P17OC[1:0]
00
01
10
11
P1.7 function
P1.7
MCK
MCK/2
MCK/4
I/O mode
By P1M0.7 & P1M1.7
By P1M0.7 & P1M1.7
By P1M0.7 & P1M1.7
By P1M0.7 & P1M1.7
Please refer Section “8 System Clock” to get the more detailed clock information. For clock-out on P1.7 function, it is
recommended to set P1M0.7 and P1M1.7 to “11” which selects P1.7 as push-pull output mode.
26
MG74PG1A08 Data Sheet
MEGAWIN