Cmsemicon CMS80F731 Series, Справочное руководство

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CMS80F731x Reference Manual
13.
Wake-up Timer (WUT)
13.1 Overview
Wake Up Timer is a clock source from the internal low-speed clock LSI, a 12-bit, up-count timer for sleep wake-ups that can
be used to time-wake systems in sleep mode. Configure the timed wake-up time before the system goes to sleep and enable
the timed wake-up function. When the chip enters sleep mode, THE WUT starts counting, and when the count value is equal to
the set value, the chip enters the sleep wake-up waiting state, the timer overflows state set to 1, and the software clears 0.
13.2 Related Registers
13.2.1
WUTCRH Register
0xBD Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
WUTCRH WUTEN -- WUTPS1 WUTPS0 WUTD11 WUTD10 WUTD9 WUTD8
R/W R/W R R/W R/W R/W R/W R/W R/W
Reset value 0 0 0 0 0 0 0 0
Bit7 WUTEN: Timed wake-up function enable bit;
1= The timed wake-up function is turned on;
0= The timed wake-up function is disabled.
Bit6 Hours_OV: Timer overflow status bit;
1= Counter overflow;
0= Software clear 0.
Bit5~Bit4 WUTPS<1:0>: Timed wake-up counter clock divider;
00= F/1;
01= F/8;
10= F/32;
11= F/256.
Bit3~Bit0 WUTD<11:8>: The timed wake-up time data is 4 bits higher.
13.2.2
WUTCRL Register
0xBC Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
WUTCRL WUTD7 WUTD6 WUTD5 WUTD4 WUTD3 WUTD2 WUTD1 WUTD0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Reset value 0 0 0 0 0 0 0 0
Bit7~Bit0 WUTD<7:0>: The timed wake-up time data is 8 bits lower.