MC68HC16Z1CPV16 Freescale Semiconductor, MC68HC16Z1CPV16 Datasheet - Page 422
![IC MPU 1K RAM 16MHZ 144-LQFP](/photos/6/76/67683/375-144-tqfp_sml.jpg)
MC68HC16Z1CPV16
Manufacturer Part Number
MC68HC16Z1CPV16
Description
IC MPU 1K RAM 16MHZ 144-LQFP
Manufacturer
Freescale Semiconductor
Series
HC16r
Datasheet
1.MC68HC16Z1VEH16.pdf
(500 pages)
Specifications of MC68HC16Z1CPV16
Core Processor
CPU16
Core Size
16-Bit
Speed
16MHz
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
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
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Quantity
Price
Company:
Part Number:
MC68HC16Z1CPV16
Manufacturer:
MOT
Quantity:
5 510
Company:
Part Number:
MC68HC16Z1CPV16
Manufacturer:
FREESCAL
Quantity:
717
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MC68HC16Z1CPV16
Manufacturer:
Freescale Semiconductor
Quantity:
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SPBR[7:0] — Serial Clock Baud Rate
D.6.11 QSPI Control Register 1
SPCR1 — QSPI Control Register 1
SPE — QSPI Enable
D-48
RESET:
SPE
15
0
The QSPI uses a modulus counter to derive the SCK baud rate from the MCU system
clock. Baud rate is selected by writing a value from two to 255 into SPBR[7:0]. The
following equation determines the SCK baud rate:
Giving SPBR[7:0] a value of zero or one disables the baud rate generator. SCK is dis-
abled and assumes its inactive state value. No serial transfers occur. At reset, the SCK
baud rate is initialized to one-eighth of the system clock frequency. SPBR has 254 ac-
tive values.
frequency based on a 16.78-MHz system clock.
SPCR1 enables the QSPI and specifies transfer delays. SPCR1 must be written last
during initialization because it contains SPE. Writing a new value to SPCR1 while the
QSPI is enabled disrupts operation.
0 = QSPI is disabled. QSPI pins can be used for general-purpose I/O.
1 = QSPI is enabled. Pins allocated by PQSPAR are controlled by the QSPI.
14
0
13
0
Table D-36
16.78 MHz
12
0
Table D-36 Examples of SCK Frequencies
f
DSCKL[6:0]
sys
Freescale Semiconductor, Inc.
11
For More Information On This Product,
0
SPBR[7:0]
lists several possible baud values and the corresponding SCK
SCK Baud Rate
10
1
Division Ratio
Go to: www.freescale.com
Required
REGISTER SUMMARY
168
510
9
0
16
34
4
8
=
------------------------------------------------------------------------- -
2 SCK Baud Rate Desired
8
0
Value of SPBR
or
7
0
=
255
17
84
------------------------------------ -
2 SPBR[7:0]
2
4
8
6
0
f
sys
f
sys
5
0
Actual SCK
Frequency
4.19 MHz
2.10 MHz
1.05 MHz
493 kHz
100 kHz
33 kHz
4
0
DTL[7:0]
3
0
M68HC16 Z SERIES
USER’S MANUAL
2
1
$YFFC1A
1
0
0
0
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