M30622 Mitsubishi, M30622 Datasheet - Page 95

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M30622

Manufacturer Part Number
M30622
Description
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Manufacturer
Mitsubishi
Datasheet

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Timer B
Figure 1.17.16. Timer B-related registers (2)
Tentative Specifications REV.A
S
pecifications in this manual are tentative and subject to change.
(b15)
Timer B3, 4, 5 count start flag
Count start flag
Clock prescaler reset flag
b7
b7
b7
Timer Bi register (Note)
b7
b6
b6
b6
b5
b5
b5
b4
b4
b4
b3
b3
b3
b2
b2
b2
(b8)
b0 b7
b1
b1
b1
b0
b0
b0
Note 1: Read and write data in 16-bit units.
Note 2: In the timer B1 of M30623(80-pin package), do not select the external pulses input
Note 3: In the timer B1 of M30623(80-pin package), this mode does not function, because
• Pulse period / pulse width measurement mode
• Timer mode
• Event counter mode
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns
out to be “0”.
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns
out to be “0”.
Measures a pulse period or width
Counts external pulses input or a timer overflow
Counts the timer's period
Bit symbol
Bit symbol
Bit symbol
CPSR
TA0S
TA1S
TA2S
TA3S
TA4S
TB0S
TB1S
TB2S
TB3S
TB4S
TB5S
Symbol
TABSR
Symbol
TBSR
Symbol
CPSRF
as count source, because timer B1 has no input pin.
timer B1 has no input pin.
Timer A0 count start flag
Timer A1 count start flag
Timer A2 count start flag
Timer A3 count start flag
Timer A4 count start flag
Timer B0 count start flag
Timer B1 count start flag
Timer B2 count start flag
Timer B3 count start flag
Timer B4 count start flag
Timer B5 count start flag
Clock prescaler reset flag
b0
Address
Address
Address
0380
0340
0381
Bit name
Bit name
Bit name
Symbol
Function
TB0
TB1
TB2
TB3
TB4
TB5
16
16
16
95
0XXXXXXX
When reset
When reset
When reset
0391
0393
0395
0351
0353
0355
0 : No effect
1 : Prescaler is reset
00
00
0 : Stops counting
1 : Starts counting
0 : Stops counting
1 : Starts counting
Address
16
16
16
16
16
16
16
16
(When read, the value is “0”)
(Note 3)
(Note 2)
, 0390
, 0392
, 0394
, 0350
, 0352
, 0354
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
2
16
16
16
16
16
16
Function
Function
Function
0000
0000
Values that can be set
Indeterminate
Indeterminate
Indeterminate
Indeterminate
Indeterminate
Indeterminate
When reset
16
16
to FFFF
to FFFF
Mitsubishi microcomputers
16
16
M16C / 62T Group
R
R
R
R
W
W
W
W

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