HD64570 Datasheet, PDF (443/469 Pages) Hitachi Semiconductor – Serial Communications Adaptor

Address
Register
CPU CPU
Mode Mode
0, 1 2, 3 Remarks
Timer (Channel 0)
Timer up-counter Channel 60H 61H
0: TCNTL Channel 0
Read/Write
Initial value
Timer up-counter Channel 61H 60H
0: TCNTH Channel 0
7
6
5
4
3
2
1
0
R/W R/W R/W R/W R/W R/W R/W R/W
0
0
0
0
0
0
0
0
15 14 13 12 11 10
9
8
Read/Write
Initial value
R/W R/W R/W R/W R/W R/W R/W R/W
0
0
0
0
0
0
0
0
Timer Constant Register
Channel 0: TCONRL
Channel 0
Timer Constant Register
Channel 0: TCONRH
Channel 0
Timer Control/Status
Register Channel 0:
TCSR Channel 0
62H 63H
63H 62H
15 14 13 12 11 10
9
8
64H
65H
Read/Write
Initial value
Bit name
Read/Write
Initial value
WWWWWWWW
1
1
1
1
1
1
1
1
7
6
5
CMF ECMI —
R R/W —
0
0
0
4
3
TME —
R/W —
0
0
2
1
0
———
———
0
0
0
Compare match flag
Timer enable
0: TCNT and TCONR
are not equal
1: TCNT and TCONR
are equal
0: Stops incrementation
1: Starts incrementation
CMF interrupt enable
0: Disable
1: Enable
Rev. 0, 07/98, page 427 of 453