Z8F041APH020SG2156 ZiLOG, Z8F041APH020SG2156 Datasheet - Page 93

• Manufacturer Part Number: Z8F041APH020SG2156
• Description: 8-bit Microcontrollers - MCU 4K FLASH 1K RAM 128B NVDS
• Manufacturer: ZiLOG

Specifications of Z8F041APH020SG2156

• Rohs: yes
• Core: eZ8
• Processor Series: Z8F041xx
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 4 KB
• Data Ram Size: 1 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: PDIP-20
• Mounting Style: Through Hole
• A/d Bit Size: 10 bit
• A/d Channels Available: 8
• Interface Type: UART
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 17
• Number Of Timers: 2
• Program Memory Type: Flash
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

PS022827-1212
PWM SINGLE OUTPUT Mode
In PWM SINGLE OUTPUT Mode, the timer outputs a Pulse-Width Modulator (PWM)
output signal through a GPIO port pin. The timer input is the system clock. The timer first
counts up to the 16-bit PWM match value stored in the Timer PWM High and Low Byte
registers. When the timer count value matches the PWM value, the Timer Output toggles.
The timer continues counting until it reaches the reload value stored in the Timer Reload
High and Low Byte registers. Upon reaching the reload value, the timer generates an inter-
rupt, the count value in the Timer High and Low Byte registers is reset to
counting resumes.
If the TPOL bit in the Timer Control Register is set to 1, the Timer Output signal begins as
a High (1) and transitions to a Low (0) when the timer value matches the PWM value. The
Timer Output signal returns to a High (1) after the timer reaches the reload value and is
reset to
If the TPOL bit in the Timer Control Register is set to 0, the Timer Output signal begins as
a Low (0) and transitions to a High (1) when the timer value matches the PWM value. The
Timer Output signal returns to a Low (0) after the timer reaches the reload value and is
reset to
Observe the following steps for configuring a timer for PWM SINGLE OUTPUT Mode
and initiating the PWM operation:
1. Write to the Timer Control Register to:
2. Write to the Timer High and Low Byte registers to set the starting count value (typi-
3. Write to the PWM High and Low Byte registers to set the PWM value.
4. Write to the Timer Reload High and Low Byte registers to set the reload value (PWM
5. If appropriate, enable the timer interrupt and set the timer interrupt priority by writing
6. Configure the associated GPIO port pin for the Timer Output alternate function.
7. Write to the Timer Control Register to enable the timer and initiate counting.
–
–
–
–
cally
in PWM mode, counting always begins at the reset value of
period). The reload value must be greater than the PWM value.
to the relevant interrupt registers.
0001H
0001H
Disable the timer
Configure the timer for PWM SINGLE OUTPUT Mode
Set the prescale value
Set the initial logic level (High or Low) and PWM High/Low transition for the
Timer Output alternate function
0001H
.
.
). This only affects the first pass in PWM mode. After the first timer reset
P R E L I M I N A R Y
Z8 Encore! XP
Product Specification
0001H
.
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0001H
F082A Series
Operation
and
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