FOR AUTOMOTIVE 125°C OPERATION 2-WIRE CONVENIENCE TIMER

S-35710 Series

17

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Configuration of Registers

1. Time register

The time register is a 3-byte register that stores the timer value in the binary code.

The time register is read-only.

Perform the read operation of the time register in 3-byte unit from TM23 to TM0.

Example:

3 seconds

(0000_0000_0000_0000_0000_0011)

45 minutes

(0000_0000_0000_1010_1000_1100)

5 hours 30 minutes

(0000_0000_0100_1101_0101_1000)

TM0

TM1

TM2

TM3

TM4

TM5

TM6

TM7

B7

B0

TM8

TM9

TM10

TM11

TM12

TM13

TM14

TM15

B7

B0

TM16

TM17

TM18

TM19

TM20

TM21

TM22

TM23

B7

B0

Figure 22

2. Wake-up time register

The wake-up time register is a 3-byte register that stores the wake-up time of the microcontroller in the binary code.

The wake-up time register is possible for write and read.

Perform the write and read operation of the wake-up time register in 3-byte unit from WU23 to WU0.

When performing the read operation of the wake-up time register, set the RST

_______

pin to "H". If the RST

_______

pin is set to "L",

the time register data is read.

WU0

WU1

WU2

WU3

WU4

WU5

WU6

WU7

B7

B0

WU8

WU9

WU10

WU11

WU12

WU13

WU14

WU15

B7

B0

WU16

WU17

WU18

WU19

WU20

WU21

WU22

WU23

B7

B0

Figure 23