MC68HC16Z1CEH25 Freescale Semiconductor, MC68HC16Z1CEH25 Datasheet - Page 276
![IC MCU 16BIT 25MHZ 132-PQFP](/photos/39/60/396098/4243113_sml.jpg)
MC68HC16Z1CEH25
Manufacturer Part Number
MC68HC16Z1CEH25
Description
IC MCU 16BIT 25MHZ 132-PQFP
Manufacturer
Freescale Semiconductor
Series
HC16r
Datasheet
1.MC68HC16Z1VEH16.pdf
(500 pages)
Specifications of MC68HC16Z1CEH25
Core Processor
CPU16
Core Size
16-Bit
Speed
25MHz
Connectivity
EBI/EMI, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
16
Program Memory Type
ROMless
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
132-QFP
Package
132PQFP
Family Name
HC16
Maximum Speed
25 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
16 Bit
Number Of Programmable I/os
16
On-chip Adc
8-chx10-bit
Number Of Timers
11
Controller Family/series
68HC16
No. Of I/o's
16
Ram Memory Size
1KB
Cpu Speed
25MHz
No. Of Timers
2
Embedded Interface Type
QSPI, SCI
Rohs Compliant
Yes
Processor Series
HC16Z
Core
CPU16
Data Ram Size
1 KB
Interface Type
SCI, SPI, UART
Maximum Clock Frequency
25 MHz
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC16Z1CEH25
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
MC68HC16Z1CEH25
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Freescale Semiconductor, Inc.
Edge-detection logic consists of control bits that enable edge detection and select a
transition to detect. The EDGExA/B bits in timer control register 2 (TCTL2) determine
whether the input capture functions detect rising edges only, falling edges only, or both
rising and falling edges. Clearing both bits disables the input capture function. Input
capture functions operate independently of each other and can capture the same
TCNT value if individual input edges are detected within the same timer count cycle.
Input capture interrupt logic includes a status flag, which indicates that an edge has
been detected, and an interrupt enable bit. An input capture event sets the ICxF bit in
the timer interrupt flag register 1 (TFLG1) and causes the GPT to make an interrupt
request if the corresponding ICxI bit is set in the timer interrupt mask register 1
(TMSK1). If the ICxI bit is cleared, software must poll the status flag to determine that
an event has occurred. Refer to
11.4 Polled and Interrupt-Driven Operation
for
more information.
Input capture events are generally asynchronous to the timer counter. Because of this,
input capture signals are conditioned by a synchronizer and digital filter. Events are
synchronized with the system clock and digital filter. Events are synchronized with the
system clock so that latching of TCNT content and counter incrementation occur on
opposite half-cycles of the system clock. Inputs have hysteresis. Capture of any tran-
sition longer than two system clocks is guaranteed; any transition shorter than one
system clock has no effect.
Figure 11-4
shows the relationship of system clock to synchronizer output. The value
latched into the capture register is the value of the counter several system clock cycles
after the transition that triggers the edge detection logic. There can be up to one clock
cycle of uncertainty in latching of the input transition. Maximum time is determined by
the system clock frequency.
The input capture register is a 16-bit register. A word access is required to ensure co-
herency. If coherency is not required, byte accesses can be used to read the register.
Input capture registers can be read at any time without affecting their values.
GENERAL-PURPOSE TIMER
M68HC16 Z SERIES
11-12
USER’S MANUAL
For More Information On This Product,
Go to: www.freescale.com
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