em78f644nso28s ELAN Microelectronics Corp, em78f644nso28s Datasheet - Page 85

• Manufacturer Part Number: em78f644nso28s
• Description: Flash Series 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.0) 05.05.2010
(This specification is subject to change without further notice)
TC2CK2
0
0
0
0
1
1
1
1
TC2CK1
0
0
1
1
0
0
1
1
6.3.49 Bank0 R49: TCR1DA (Timer 1 Data Buffer A)
Bits 7~0 (TCR1DA7~TCR1DA0): 8-bit Timer/Counter 1 of Data Buffer A
6.3.50 Bank0 R4A: TCR1DB (Timer 1 Data Buffer B )
Bits 7~0 (TCR1DB7~TCR1DB0): 8-bit Timer/Counter 1 of Data Buffer B
6.3.51 Bank0 R4B: TC2CR (Timer 2 Control Register)
Bits 7~6:
Bit 5 (TC2ES): TC2 signal edge
Bit 4 (TC2M): Timer/Counter2 mode select
Bit 3 (TC2S): Timer/Counter 2 start control
Bits 2~0 (TC2CK2~TC2CK0): Timer/Counter 2 clock source select
TCR1DA7 TCR1DA6 TCR1DA5 TCR1DA4 TCR1DA3 TCR1DA2 TCR1DA1 TCR1DA0
TCR1DB7 TCR1DB6 TCR1DB5 TCR1DB4 TCR1DB3 TCR1DB2 TCR1DB1 TCR1DB0
Bit 7
Bit 7
Bit 7
0
TC1CK0
0
1
0
1
0
1
0
1
Bit 6
Bit 6
Bit 6
0
Not used, fixed to “0” all the time.
External clock
(TC2 pin)
0: Increment if the transition from low to high (rising edge) takes place
1: Increment if the transition from high to low (falling edge) takes
0: Timer/Counter 2 mode
1: Window mode
0: Stop and clear counter
1: Start timer/counter
F
F
F
F
F
C
C
C
C
C
on TC2 pin
place on TC2 pin
SOURCE
CLOCK
/2
/2
/2
/2
Normal
23
13
8
3
-
-
TC2ES
Bit 5
Bit 5
Bit 5
1.05s
1.024ms
32μs
1μs
125ns
Resolution
EM78F648/644/642/641/548/544/542/541N
F
TC2M
8MHZ
Bit 4
C
Bit 4
Bit 4
=8M
-
-
-
TC2S
Bit 3
19.1hr
66.21s
2.097s
65.536ms
8.192ms
Bit 3
Bit 3
Max time
F
8MHz
C
=8M
-
-
-
TC2CK2
Bit 2
Bit 2
Bit 2
145hr
512ms
16ms
0.5ms
0.0625ms
Resolution
F
16KHZ
C
8-Bit Microcontroller
=16K
TC2CK1
-
-
-
Bit 1
Bit 1
Bit 1
9544hr
33554.432s
1048.576s
32768ms
4096ms
Max time
TC2CK0
F
16KHz
C
Bit 0
=16K
Bit 0
Bit 0
-
-
-
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