MC68HC16Z1CEH25 Freescale Semiconductor, MC68HC16Z1CEH25 Datasheet - Page 253
![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
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Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC16Z1CEH25
Manufacturer:
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Quantity:
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10.4 Serial Communication Interface (SCI)
10.4.1 SCI Registers
10.4.1.1 SCI Control Registers
M68HC16 Z SERIES
USER’S MANUAL
The SCI submodule contains two independent SCI systems. Each is a full-duplex uni-
versal asynchronous receiver transmitter (UART). This SCI system is fully compatible
with SCI systems found on other Freescale devices, such as the M68HC11 and
M68HC05 families.
The SCI uses a standard non-return to zero (NRZ) transmission format. An on-chip
baud-rate generator derives standard baud-rate frequencies from the MCU oscillator.
Both the transmitter and the receiver are double buffered, so that back-to-back char-
acters can be handled easily even if the CPU is delayed in responding to the comple-
tion of an individual character. The SCI transmitter and receiver are functionally
independent but use the same data format and baud rate.
Figure 10-5
diagram of the SCI receiver.
The two independent SCI systems are called SCIA and SCIB. These SCIs are identi-
cal in register set and hardware configuration, providing an application with full flexi-
bility in using the dual SCI system. References to SCI registers in this section do not
always distinguish between the two SCI systems. A reference to SCCR1, for example,
applies to both SCCR1A (SCIA control register 1) and SCCR1B (SCIB control register
1).
The SCI programming model includes the MCCI global and pin control registers and
eight SCI registers. Each of the two SCI units contains two SCI control registers, one
status register, and one data register. Refer to
SCI Status
tions.
All registers may be read or written at any time by the CPU. Rewriting the same value
to any SCI register does not disrupt operation; however, writing a different value into
an SCI register when the SCI is running may disrupt operation. To change register val-
ues, the receiver and transmitter should be disabled with the transmitter allowed to fin-
ish first. The status flags in the SCSR may be cleared at any time.
When initializing the SCI, set the transmitter enable (TE) and receiver enable (RE) bits
in SCCR1 last. A single word write to SCCR1 can be used to initialize the SCI and en-
able the transmitter and receiver.
SCCR0 contains the baud rate selection field. The baud rate must be set before the
SCI is enabled. The CPU16 can read and write this register at any time.
Register, and
shows a block diagram of the SCI transmitter.
MULTICHANNEL COMMUNICATION INTERFACE
Freescale Semiconductor, Inc.
For More Information On This Product,
D.7.12 SCI Data Register
Go to: www.freescale.com
D.7.9 SCI Control Register
for register bit and field defini-
Figure 10-6
shows a block
0,
D.7.11
10-13
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