Register Descriptions - Renesas H8 Series Hardware Manual

Section 9 Timers
Register Configuration
Table 9.2 shows the register configuration of timer A.
Table 9.2 Timer A Registers
Name
Timer mode register A
Timer counter A
Clock stop register 1
9.2.2

Register Descriptions

Timer Mode Register A (TMA)
Bit 7


Initial value
Read/Write W
TMA is an 8-bit read/write register for selecting the prescaler, and input clock.
Bits 7 to 5—Reserved
Bits 7 to 5 are reserved; only 0 can be written to these bits.
Bit 4—Reserved
Bit 4 is reserved; it is always read as 1, and cannot be modified.
Rev. 7.00 Mar 10, 2005 page 248 of 652
REJ09B0042-0700
Abbr.
TMA
TCA
CKSTPR1
6 5 4
  
 
1

W W
R/W Initial Value
R/W —
R H'00
R/W H'FF
3 2
TMA3 TMA2 TMA1
0 0
R/W R/W R/W
Address
H'FFB0
H'FFB1
H'FFFA
1 0
TMA0
0 0
R/W