MC68HC711P2CFN4 Freescale Semiconductor, MC68HC711P2CFN4 Datasheet - Page 169

• Manufacturer Part Number: MC68HC711P2CFN4
• Description: IC MCU 32K OTP 4MHZ 84-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711P2CFN4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: MI Bus, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 640 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

8.9.6 PWCNT1–4 — PWM timer counter registers 1 to 4
8.9.7 PWPER1–4 — PWM timer period registers 1 to 4
MC68HC11P2 — Rev 1.0
Pulse width period 1 (PWPER1) $0068 (bit 7)
Pulse width period 2 (PWPER2) $0069 (bit 7)
Pulse width period 3 (PWPER3) $006A (bit 7)
Pulse width period 4 (PWPER4) $006B (bit 7)
Pulse width count 1 (PWCNT1)
Pulse width count 2 (PWCNT2)
Pulse width count 3 (PWCNT3)
Pulse width count 4 (PWCNT4)
Bits [5:4] — Not implemented; always read zero
PWEN[4:1] — Pulse width channels 4–1
Each channel has its own counter which can be read at any time without
affecting the count or the operation of the PWM channel. Writing to a
counter causes it to be reset to $00; this is generally done before the
counter is enabled. A counter may also be written to whilst it is enabled;
this may cause a truncated PWM period.
There is one period register for each channel. The value in this register
determines the period of the associated PWM timer channel. PWPERx
is connected internally to a buffer which compares directly with the
counter register. The period value in PWPERx is loaded into the buffer
when the counter is cleared by the termination of the previous period or
by a write to the counter. This register can be written at any time, and the
written value will take effect from the start of the next PWM timer cycle.
Freescale Semiconductor, Inc.
Address bit 7
Address bit 7
For More Information On This Product,
$0064 (bit 7)
$0065 (bit 7)
$0066 (bit 7)
$0067 (bit 7)
1 = Channel enabled on the associated port pin.
0 = Channel disabled.
Go to: www.freescale.com
Timing System
bit 6
bit 6
(6)
(6)
(6)
(6)
(6)
(6)
(6)
(6)
bit 5
bit 5
(5)
(5)
(5)
(5)
(5)
(5)
(5)
(5)
bit 4
bit 4
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
bit 3
bit 3
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
Pulse-width modulation (PWM) timer
bit 2
bit 2
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
bit 1
bit 1
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(bit 0) 0000 0000
(bit 0) 0000 0000
(bit 0) 0000 0000
(bit 0) 0000 0000
(bit 0) 1111 1111
(bit 0) 1111 1111
(bit 0) 1111 1111
(bit 0) 1111 1111
bit 0
bit 0
Technical Data
Timing System
on reset
on reset
State
State