HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 447

• Manufacturer Part Number: HD64570
• Description: Serial Communications Adaptor
• Manufacturer: HITACHI [Hitachi Semiconductor]

Register
Timer (Channel 2)
Timer Expand Prescale
Register Channel 2: TEPR
Channel 2
Not used
Not used
Timer (Channel 3)
Timer up-counter Channel
3: TCNTL Channel 3
Timer up-counter Channel
3: TCNTH Channel 3
Timer Constant Register
Channel 3: TCONRL
Channel 3
Timer Constant Register
Channel 3: TCONRH
Channel 3
CPU
Mode
0, 1
75H
76H
77H
78H
79H
7AH
7BH
Address
CPU
Mode
2, 3
74H
77H
76H
79H
78H
7BH
7AH
Read/write
Initial value
Read/Write
Initial value
Read/Write
Initial value
Read/write
Initial value
Bit name
Read/Write
Initial value
Remarks
—
—
7
0
R/W
R/W
15
15
W
W
7
0
0
7
1
1
—
—
6
0
R/W
R/W
14
14
W
W
6
0
0
6
1
1
—
—
5
0
R/W
R/W
13
13
W
W
0
5
1
5
0
1
Rev. 0, 07/98, page 431 of 453
—
—
4
0
R/W
R/W
12
12
W
W
4
0
0
4
1
1
—
—
3
0
R/W
R/W
11
W
11
W
ECKS2
3
0
0
3
1
1
R/W
2
0
Expand clock input select
000: BC
001: BC/2
010: BC/4
011: BC/8
100: BC/16
101: BC/32
110: BC/64
111: BC/128
R/W
R/W
ECKS1
10
W
10
W
0
2
1
2
0
1
R/W
1
0
ECKS0
R/W
R/W
R/W
W
W
9
0
1
1
1
0
9
1
0
0
R/W
R/W
W
W
0
0
8
0
0
1
8
1