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| Z51F0410 Datasheet, PDF (91/184 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers | |||
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Z51F0410
Product Specification
T1CR[1:0] = 10H(2us)
T1PWHR
=
00H
T1PPR = 0EH
T1PDR = 05H
Source Clock
(fX)
Write 0AH to T1PPR
T1
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 00 01 02 03 04 05 06 07 08 09 0A 00 01 02 03 04 05 06
T1/PWM
POL = 1
Duty Cycle
(1+05H)X2us = 12us
Period Cycle
(1+0EH)X2us = 32us ï 31.25kHz
Duty Cycle
(1+05H)X2us = 12us
Period Cycle
(1+0AH)X2us = 22us ï 45.5kHz
Duty Cycle
(1+05H)X2us = 12us
Figure 4.16 Example of Changing the Period in Absolute Duty Cycle at 4Mhz
4.5.1.7 8-Bit (16-Bit) Compare Output Mode
If the T1 (T0+T1) value and the T1DR (T0DR+T1DR) value are matched, T1/PWM1 port outputs.
The output is 50:50 of duty square wave, the frequency is following
fCOMP
ï½
Oscillator Frequency
2 ï´ Prescaler Valueï´ (TDR ï«1)
To export the compare output as T1/PWM1, the T1_PE bit in the T1PWHR register must set to â1â.
4.5.1.8 Register Map
Name
T0CR
T0
T0DR
CDR0
T1CR
T1DR
T1PPR
T1
T1PDR
CDR1
T1PWHR
Address
B2H
B3H
B3H
B3H
B4H
B5H
B5H
B6H
B6H
B6H
B7H
Table 4.7 Timer Register Map
Dir
R/W
R
W
R
R/W
W
W
R
R/W
R
W
Default
00H
00H
FFH
00H
00H
FFH
FFH
00H
00H
00H
00H
Description
Timer 0 Mode Control Register
Timer 0 Register
Timer 0 Data Register
Capture 0 Data Register
Timer 1 Mode Control Register
Timer 1 Data Register
Timer 1 PWM Period Register
Timer 1 Register
Timer 1 PWM Duty Register
Capture 1 Data Register
Timer 1 PWM High Register
PS029502-0212
PRELIMINARY
88
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