S912XEP768J5MAGR Freescale Semiconductor, S912XEP768J5MAGR Datasheet - Page 770
S912XEP768J5MAGR
Manufacturer Part Number
S912XEP768J5MAGR
Description
16-bit Microcontrollers - MCU 16-bit 768K Flash
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEG128J2MAL.pdf
(1324 pages)
Specifications of S912XEP768J5MAGR
Rohs
yes
Core
HCS12X
Processor Series
MC9S12
Data Bus Width
16 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
768 KB
Data Ram Size
48 KB
On-chip Adc
Yes
Operating Supply Voltage
3.3 V to 5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
LQFP-144
Mounting Style
SMD/SMT
Available stocks
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Quantity
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Part Number:
S912XEP768J5MAGR
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Freescale Semiconductor
Quantity:
10 000
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Chapter 21 Serial Peripheral Interface (S12SPIV5)
21.3.2.4
Read: Anytime
Write: Has no effect
770
Module Base +0x0003
SPPR2
Reset
SPTEF
MODF
Field
SPIF
1
1
1
1
1
1
1
1
1
1
7
5
4
W
R
SPIF
SPIF Interrupt Flag — This bit is set after received data has been transferred into the SPI data register. For
information about clearing SPIF Flag, please refer to
0 Transfer not yet complete.
1 New data copied to SPIDR.
SPI Transmit Empty Interrupt Flag — If set, this bit indicates that the transmit data register is empty. For
information about clearing this bit and placing data into the transmit data register, please refer to
0 SPI data register not empty.
1 SPI data register empty.
Mode Fault Flag — This bit is set if the SS input becomes low while the SPI is configured as a master and mode
fault detection is enabled, MODFEN bit of SPICR2 register is set. Refer to MODFEN bit description in
Section 21.3.2.2, “SPI Control Register 2
register (with MODF set) followed by a write to the SPI control register 1.
0 Mode fault has not occurred.
1 Mode fault has occurred.
Table 21-7. Example SPI Baud Rate Selection (25 MHz Bus Clock) (Sheet 3 of 3)
SPI Status Register (SPISR)
0
7
SPPR1
1
1
1
1
1
1
1
1
1
1
= Unimplemented or Reserved
0
0
6
SPPR0
0
0
1
1
1
1
1
1
1
1
MC9S12XE-Family Reference Manual Rev. 1.25
Figure 21-6. SPI Status Register (SPISR)
Table 21-8. SPISR Field Descriptions
SPTEF
1
5
SPR2
1
1
0
0
0
0
1
1
1
1
(SPICR2)”. The flag is cleared automatically by a read of the SPI status
MODF
SPR1
0
4
1
1
0
0
1
1
0
0
1
1
Description
Table
SPR0
21-9.
0
1
0
1
0
1
0
1
0
1
0
0
3
Baud Rate
Divisor
1792
1024
2048
0
0
2
896
128
256
512
16
32
64
Freescale Semiconductor
0
0
1
1.5625 Mbit/s
781.25 kbit/s
390.63 kbit/s
195.31 kbit/s
27.90 kbit/s
13.95 kbit/s
97.66 kbit/s
48.83 kbit/s
24.41 kbit/s
12.21 kbit/s
Baud Rate
Table
21-10.
0
0
0
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