m3819 Renesas Electronics Corporation., m3819 Datasheet - Page 170

• Manufacturer Part Number: m3819
• Description: Mitsubishi 8-bit Single-chip Microcomputer 740 Family / 38000 Series
• Manufacturer: Renesas Electronics Corporation.

2. APPLICATION
Fig. 2.9.3 Structure of Timer 12 mode register
Fig. 2.9.4 Structure of Timer 34 mode register
156
Timer 12 mode register
Timer 34 mode register
b7 b6 b5 b4 b3 b2 b1 b0
b7 b6 b5 b4 b3 b2 b1 b0
B
0
1
2
3
4
5
6
7
Timer 12 mode register (T12M) [Address:28
B
0
1
2
3
4
5
6
7
Timer 34 mode register (T34M) [Address:29
Timer 1 count stop bit
Timer 2 count stop bit
Timer 1 count source
selection bit
Nothing is allocated for this bit. This is a write disabled bit.
When this bit is read out, the value is "0."
Timer 2 count source
selection bits
Timer 1 output selection bit
(P4
Nothing is allocated for this bit. This is a write disabled bit.
When this bit is read out, the value is "0."
Timer 3 count stop bit
Timer 4 count stop bit
Timer 3 count source
selection bit
Timer 4 count source
selection bits
Timer 3 output selection bit
(P4
Nothing is allocated for this bit. This is a write disabled bit.
When this bit is read out, the value is "0."
Nothing is allocated for this bit. This is a write disabled bit.
When this bit is read out, the value is "0."
6
7
)
)
3819 Group USER’S MANUAL
Name
Name
2.9 Clock generating circuit
b5 b4
0 : f(X
1 : f(X
00 : Timer 1 underflow
01 : f(X
10 : External count input CNTR
11 : Not available
0 : I/O port
1 : Timer 1 output
b5 b4
0 : Operating
1 : Stopped
0 : Operating
1 : Stopped
0 : Operating
1 : Stopped
0 : Operating
1 : Stopped
0 : f(X
1 : Timer 2 underflow
00 : f(X
01 : Timer 3 underflow
10 : External count input CNTR
11 : Not available
0 : I/O port
1 : Timer 3 output
IN
CIN
IN
CIN
)/16 or f(X
IN
)/16 or f(X
)
16
)/16 or f(X
Function
16
)
Function
]
]
CIN
CIN
CIN
MITSUBISHI MICROCOMPUTER
)/16
)/16
)/16
3819 Group
0
1
At reset
At reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R W
R W