3807_03 Datasheet, PDF (218/247 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPENDIX
3.5 List of registers
Timer 123 mode register
b7 b6 b5 b4 b3 b2 b1 b0
Timer 123 mode register (T123M) [Address : 2916]
B
Name
Function
At reset R W
0
TOUT output active edge switch 0 : Start at outputting “H” signal
bit
1 : Start at outputting “L” signal
0
1 ^{TOUT output control bit}
0 : Disabled TOUT output
1 : Enabled TOUT output
0
2 ^{Timer 2 write control bit}
0 : To a latch and a timer at the same time
1 : To only latch
0
3
Timer 2 count source selection 0 : Output signal from Timer 1
bit
1 : f(XIN)/16
(Note 1)
0
4
Timer 3 count source selection 0 : Output signal from Timer 1
bit
1 : f(XIN)/16
(Note 1)
0
5
Timer 1 count source selection
b6 b5
0 0:
f(XIN)/16
bit
0 1 : f(XIN)/2
(Note 1) ₀
(Note 2)
6
1 0 : f(XCIN)
1 1 : Not available
0
7
Nothing is allocated for this bit. It is a write disabled bit.
When this bit is read out, the value is “0.”
0
!
Note 1 : In low-speed mode f(XCIN)/16 is selected.
2 : In low-speed mode f(XCIN)/2 is selected.
Fig. 3.5.22 Structure of Timer 123 mode register
Real time port register
b7 b6 b5 b4 b3 b2 b1 b0
Real time port register (RTP) [Address : 2A16]
B
Function
At reset R W
0 q _{Sets the data to be output to the Real time port.}
0
1 ^q Makes it possible to write data into any of Real time port 0
2 registers 0 to 7 by specifying the Real time port data pointer
0
3 ^{(R/W pointer) and writing data into this register.}
0
4 ^{q Makes it possible to read any data of Real time port registers 0} 0
5 ^{to 7 by specifying the Real time port data pointer (R/W pointer)} 0
6 ^{and reading data from this register.}
0
7
0
Fig. 3.5.23 Structure of Real time port register
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3807 GROUP USER’S MANUAL