M34513M2 Datasheet, PDF (29/106 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

PRELIMINARY _{NSocothimcaene:gpTeah.riasmisetnrioct} ^{laimfiintsalasrepescuibfijceacttioton.}
MITSUBISHI MICROCOMPUTERS
4513/4514 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
Instruction clock
Prescaler
W13
W12
Division circuit
(divided by 2)
MR3
1 Internal clock
0
1/4
0
generation circuit
1
1/16
1
XIN
0
(divided by 3)
P30/INT0
I12
0
1 _I10
W11 (Note)
0
1
ORCLK
W10
SQ
1
R
0
Timer 1 (8)
(TAB1)
Reload register R1 (8)
T1AB _(TR1AB) T1AB
Register B Register A
W21,W20
00
01
10
Timer 1 underflow signal
W23(Note)
0
Timer 2 (8)
1
11
Reload register R2 (8)
(T2AB)
(TAB2)
Register B Register A
I22 ^{Timer 2 underflow signal}
P31/INT1
W31,W30
0
SQ
1
I20 R
W32
1
0
00
W33(Note)
01
0
1
10
Not available
11 _{Not available}
Timer 3 (8)
Reload register R3 (8)
T3AB (TR3AB) T3AB
(TAB3)
Register B Register A
W41,W40
00
01
10
Timer 3 underflow signal
W43(Note)
0
Timer 4 (8)
1
11
Not available
Reload register R4 (8)
(TAB4)
(T4AB)
Register B Register A
D6/CNTR0
D7/CNTR1
W60
0
1
W62
0
1
W61
D6 output
0
1
W63
D7 output
0
1
1/2
1/2 Timer 2 underflow signal
1/2
1/2 Timer 4 underflow signal
T1F ^{Timer 1}
interrupt
T2F ^{Timer 2}
interrupt
T3F
Timer 3
interrupt
T4F ^{Timer 4}
interrupt
Data is set automatically from
each reload register when timer
1, 2, 3, or 4 underflows (auto-
reload function)
Note: Count source is stopped by
clearing to “0.”
Instruction clock
16-bit timer (WDT)
1 - - - - - - - - - - - 15 16
WRST instruction
Reset signal
S
WEF Q
R
WDF1 WDF2
System reset
Fig. 19 Timers structure
29