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EM78P809N
8-Bit Microcontroller
14 •
Product Specification (V1.0) 07.26.2005
(This specification is subject to change without further notice)
Bit 5 ~ Bit 4 ( TC3CK1 ~ TC3CK0 ) : Timer/Counter3 Clock Source Select
TC3CK1 TC3CK0
Clock source
( Normal, Idle )
Resolution
( Fc=8M )
Max. time
( Fc=8M )
0 0 Fc/2
12
512μS 131.1mS
0 1 Fc/2
10
128μS 32.6mS
1 0 Fc/2
7
16μS 4.1mS
1 1 External clock (TC3 pin) - -
Bit 3 ( TC3M ) : Timer/Counter 3 mode select
TC3M = “0” : Timer/Counter3 mode
TC3M = “1” : Capture mode
TC3DA − Timer 3 Data Buffer A ( Address: 06h )
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
TC3DA7 TC3DA6 TC3DA5 TC3DA4 TC3DA3 TC3DA2 TC3DA1 TC3DA0
Bit 7 ~ Bit 0 ( TC3DA7 ~ TC3DA0 ) : Data buffer of 8-bit Timer/Counter 3.
Reset does not affect this register.
TC3DB − Timer 3 Data Buffer B ( Address: 07h )
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
TC3DB7 TC3DB6 TC3DB5 TC3DB4 TC3DB3 TC3DB2 TC3DB1 TC3DB0
Bit 7 ~ Bit 0 ( TC3DB7 ~ TC3DB0 ) : Data buffer of 8-bit Timer/Counter 3
Reset does not affect this register.
TC2CR/ ADDL — Timer/Counter 2 Control Register, AD Low 2 bits Data
Buffer ( Address: 08h )
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
ADD1 ADD0 0 TC2M TC2S TC2CK2 TC2CK1 TC2CK0
Bit 7 ~ Bit 6 ( ADD1 ~ ADD0 ) : AD low 2-bit data buffer
Bit 4 ( TC2M ) : Timer/Counter 2 mode select
TC2M = “0” : Timer/counter mode
TC2M = “1” : Window mode
Bit 3 ( TC2S ) : Timer/Counter 2 start control
TC2S = “0” : Stop and counter clear
TC2S = “1” : Start