MC68HC908EY16CFA Freescale Semiconductor, MC68HC908EY16CFA Datasheet - Page 206
MC68HC908EY16CFA
Manufacturer Part Number
MC68HC908EY16CFA
Description
IC MCU 16K FLASH 8MHZ SPI 32LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908EY16VFAR2.pdf
(278 pages)
Specifications of MC68HC908EY16CFA
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
LIN, SCI, SPI
Peripherals
POR, PWM
Number Of I /o
24
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Processor Series
HC08EY
Core
HC08
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
ESCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
24
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05CE, ZK-HC08EY-A
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No
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Timer Interface A (TIMA) Module
TOVx — Toggle-On-Overflow Bit
CHxMAX — Channel x Maximum Duty Cycle Bit
206
When channel x is an output compare channel, this read/write bit controls the behavior of the channel x
output when the TIMA counter overflows. When channel x is an input capture channel, TOVx has no
effect. Reset clears the TOVx bit.
When the TOVx bit is at 1 and clear output on compare is selected, setting the CHxMAX bit forces the
duty cycle of buffered and unbuffered PWM signals to 100 percent. As
CHxMAX bit takes effect in the cycle after it is set or cleared. The output stays at 100 percent duty
cycle level until the cycle after CHxMAX is cleared.
1 = Channel x pin toggles on TIMA counter overflow.
0 = Channel x pin does not toggle on TIMA counter overflow.
PTEx/TCHx
When TOVx is set, a TIMA counter overflow takes precedence over a
channel x output compare if both occur at the same time.
The PWM 100 percent duty cycle is defined as output high all of the time.
To generate the 100 percent duty cycle, use the CHxMAX bit in the TSCx
register. The PWM 0 percent duty cycle is defined as output low all of the
time. To generate the 0 percent duty cycle, select clear output on compare
and then clear the TOVx bit (CHxMAX = 0).
CHxMAX
TOV = 1
TOV = 0
OVERFLOW
MC68HC908EY16 • MC68HC908EY8 Data Sheet, Rev. 10
COMPARE
PERIOD
OUTPUT
Figure 17-8. CHxMAX Latency
OVERFLOW
COMPARE
OUTPUT
NOTE
NOTE
OVERFLOW
COMPARE
OUTPUT
OVERFLOW
COMPARE
OUTPUT
Figure 17-8
OVERFLOW
Freescale Semiconductor
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