MC68HC16Z1CAG25 Freescale Semiconductor, MC68HC16Z1CAG25 Datasheet - Page 262
![IC MCU 16BIT 25MHZ 144-LQFP](/photos/6/76/67683/375-144-tqfp_sml.jpg)
MC68HC16Z1CAG25
Manufacturer Part Number
MC68HC16Z1CAG25
Description
IC MCU 16BIT 25MHZ 144-LQFP
Manufacturer
Freescale Semiconductor
Series
HC16r
Datasheet
1.MC68HC16Z1VEH16.pdf
(500 pages)
Specifications of MC68HC16Z1CAG25
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
144-LQFP
Cpu Family
HC16
Device Core Size
16b
Frequency (max)
25MHz
Interface Type
SCI/SPI/UART
Program Memory Size
Not Required
Total Internal Ram Size
1KB
# I/os (max)
16
Number Of Timers - General Purpose
11
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
144
Package Type
LQFP
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 Bus Width
16 bit
Data Ram Size
1 KB
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
16
Number Of Timers
11
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
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC16Z1CAG25
Manufacturer:
FREESCAL
Quantity:
455
Company:
Part Number:
MC68HC16Z1CAG25
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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10.4.5.8 Receiver Wake-Up
10.4.5.9 Internal Loop
10-22
In some applications, software overhead can cause a bit-time of logic level one to oc-
cur between frames. This bit-time does not affect content, but if it occurs after a frame
of ones when short detection is enabled, the receiver flags an idle line.
When the ILIE bit in SCCR1 is set, an interrupt request is generated when the IDLE
flag is set. The flag is cleared by reading SCSR and SCDR in sequence. IDLE is not
set again until after at least one frame has been received (RDRF = 1). This prevents
an extended idle interval from causing more than one interrupt.
The receiver wake-up function allows a transmitting device to direct a transmission to
a single receiver or to a group of receivers by sending an address frame at the start of
a message. Hardware activates each receiver in a system under certain conditions.
Resident software must process address information and enable or disable receiver
operation.
A receiver is placed in wake-up mode by setting the RWU bit in SCCR1. While RWU
is set, receiver status flags and interrupts are disabled. Although the CPU32 can clear
RWU, it is normally cleared by hardware during wake-up.
The WAKE bit in SCCR1 determines which type of wake-up is used. When WAKE =
0, idle-line wake-up is selected. When WAKE = 1, address-mark wake-up is selected.
Both types require a software-based device addressing and recognition scheme.
Idle-line wake-up allows a receiver to sleep until an idle line is detected. When an idle-
line is detected, the receiver clears RWU and wakes up. The receiver waits for the first
frame of the next transmission. The byte is received normally, transferred to the RDR,
and the RDRF flag is set. If software does not recognize the address, it can set RWU
and put the receiver back to sleep. For idle-line wake-up to work, there must be a min-
imum of one frame of idle line between transmissions. There must be no idle time be-
tween frames within a transmission.
Address-mark wake-up uses a special frame format to wake up the receiver. When the
MSB of an address-mark frame is set, that frame contains address information. The
first frame of each transmission must be an address frame. When the MSB of a frame
is set, the receiver clears RWU and wakes up. The byte is received normally, trans-
ferred to the RDR, and the RDRF flag is set. If software does not recognize the ad-
dress, it can set RWU and put the receiver back to sleep. Address-mark wake-up
allows idle time between frames and eliminates idle time between transmissions. How-
ever, there is a loss of efficiency because of an additional bit-time per frame.
The LOOPS bit in SCCR1 controls a feedback path in the data serial shifter. When
LOOPS is set, the SCI transmitter output is fed back into the receive serial shifter. TXD
is asserted (idle line). Both transmitter and receiver must be enabled before entering
loop mode.
MULTICHANNEL COMMUNICATION INTERFACE
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
M68HC16 Z SERIES
USER’S MANUAL
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