MC9S12E128CPV Freescale Semiconductor, MC9S12E128CPV Datasheet - Page 283
MC9S12E128CPV
Manufacturer Part Number
MC9S12E128CPV
Description
Microcontrollers (MCU) 16 Bit 16MHz
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12E128CPV.pdf
(606 pages)
Specifications of MC9S12E128CPV
Data Bus Width
16 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
8 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
92
Number Of Timers
16 bit
Operating Supply Voltage
3.135 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
LQFP-112
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
On-chip Dac
8 bit, 2 Channel
Lead Free Status / Rohs Status
No RoHS Version Available
Available stocks
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Quantity
Price
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Part Number:
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9.3.2.3
Read: anytime
Write: anytime; writes to the reserved bits have no effect
The baud rate divisor equation is as follows:
The baud rate can be calculated with the following equation:
Freescale Semiconductor
SPPR[2:0]
SPR[2:0}
Reset
Field
6:4
2:0
W
R
SPI Baud Rate Preselection Bits — These bits specify the SPI baud rates as shown in
mode, a change of these bits will abort a transmission in progress and force the SPI system into idle state.
SPI Baud Rate Selection Bits — These bits specify the SPI baud rates as shown in
a change of these bits will abort a transmission in progress and force the SPI system into idle state.
SPI Baud Rate Register (SPIBR)
0
0
7
= Unimplemented or Reserved
SPPR2
0
6
Figure 9-5. SPI Baud Rate Register (SPIBR)
BaudRateDivisor
Baud Rate
Table 9-6. SPIBR Field Descriptions
SPPR1
MC9S12E128 Data Sheet, Rev. 1.07
0
5
=
BusClock BaudRateDivisor
SPPR0
=
0
4
SPPR
Description
+
1
0
0
3
2
SPR
Chapter 9 Serial Peripheral Interface (SPIV3)
+
1
SPR2
0
2
Table
SPR1
Table
0
1
9-7. In master mode,
9-7. In master
SPR0
0
0
283
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