Tcvr0: Timer 0 Constant Value Register; Trvr1: Timer 1 Read Value Register - Hitachi HD64465 User Manual

9.2.2

TCVR0: Timer 0 Constant Value Register

The TCVR0, a 16-bit register, provides the counter constant for the timer 0. The register is
initialized to H'FFFF at RESET.
Address: H'10006002
Bit 15
Bit Name -
Initial Value 1
R/W R/W
Bit 7
Bit Name -
Initial Value 1
R/W R/W
Bit Description
15 - 0 These bits are set as the timer 0 constant value.
9.2.3

TRVR1: Timer 1 Read Value Register

The TRVR1, a 16-bit register, serves to read the counting value in the timer 1. This register would
be reset to H'0002 when the timer is stopped.
Address: H'10006004
Bit 15
Bit Name -
Initial Value -
R/W R
Bit 7
Bit Name -
Initial Value -
R/W R
Bit Description
15 - 0 The timer 1 counter value is read from these bits.
14 13 12
- - -
1 1 1
R/W R/W R/W
6 5 4
- - -
1 1 1
R/W R/W R/W
14 13 12
- - -
- - -
R R R
6 5 4
- - -
- - -
R R R
11 10 9
- - -
1 1 1
R/W R/W R/W
3 2 1
- - -
1 1 1
R/W R/W R/W
11 10 9
- - -
- - -
R R R
3 2 1
- - -
- - -
R R R
Rev. 3.0, 03/01, page 93 of 390
8
-
1
R/W
0
-
1
R/W
Default
H'FFFF
8
-
-
R
0
-
-
R
Default
-