h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 390

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 12 8-Bit Timers
12.2.7
Only bit 1 is described here. For details on functions not related to the 8-bit timers, see sections
3.2.2 and 5.2.1, System Control Register (SYSCR), and the descriptions of the relevant modules.
Bit 1—Host Interface Enable (HIE): Controls CPU access to 8-bit timer (channel X and Y) data
registers and control registers, and timer connection control registers.
Bit 1
HIE
0
1
12.2.8
TCONRS is an 8-bit readable/writable register that controls access to the TMRX and TMRY
registers and timer connection operation.
TCONRS is initialized to H'00 by a reset and in hardware standby mode.
Bit 7—TMRX/TMRY Access Select (TMRX/Y): The TMRX and TMRY registers can only be
accessed when the HIE bit in SYSCR is cleared to 0. Some of the TMRX registers and the TMRY
registers are assigned to the same memory space addresses (H'FFF0 to H'FFF5), and the TMRX/Y
bit determines which registers are accessed.
Rev. 3.00 Jan 18, 2006 page 362 of 1044
REJ09B0280-0300
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
System Control Register (SYSCR)
Timer Connection Register S (TCONRS)
Description
CPU access to 8-bit timer (channel X and Y) data registers and control
registers, and timer connection control registers, is enabled
CPU access to 8-bit timer (channel X and Y) data registers and control registers, and
timer connection control registers, is disabled
TMRX/Y
CS2E
R/W
R/W
7
0
7
0
ISGENE
IOSE
R/W
R/W
6
0
6
0
HOMOD1
INTM1
R/W
R
5
0
5
0
HOMOD0
INTM0
R/W
R/W
4
0
4
0
VOMOD1
XRST
R/W
R
3
1
3
0
VOMOD0
NMIEG
R/W
R/W
2
0
2
0
CLMOD1
R/W
R/W
HIE
1
0
1
0
(Initial value)
CLMOD0
RAME
R/W
R/W
0
1
0
0