S912XEG128J2MAL Freescale Semiconductor, S912XEG128J2MAL Datasheet - Page 748
S912XEG128J2MAL
Manufacturer Part Number
S912XEG128J2MAL
Description
16-bit Microcontrollers - MCU 16BIT 128K FLASH 16K RAM
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEG128J2MAL.pdf
(1324 pages)
Specifications of S912XEG128J2MAL
Rohs
yes
Core
RISC
Processor Series
HCS12X
Data Bus Width
16 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
128 KB
Data Ram Size
12 KB
On-chip Adc
Yes
Operating Supply Voltage
5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
LQFP-112
Mounting Style
SMD/SMT
A/d Bit Size
12 bit
A/d Channels Available
8
Data Rom Size
4 KB
Interface Type
CAN, I2C, SCI, SPI
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
On-chip Dac
Yes
Program Memory Type
Flash
Supply Voltage - Max
5.5 V
Supply Voltage - Min
3.13 V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
S912XEG128J2MAL
Manufacturer:
NXP/恩智浦
Quantity:
20 000
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Chapter 20 Serial Communication Interface (S12SCIV5)
20.4.6
20.4.6.1
The SCI receiver can accommodate either 8-bit or 9-bit data characters. The state of the M bit in SCI
control register 1 (SCICR1) determines the length of data characters. When receiving 9-bit data, bit R8 in
SCI data register high (SCIDRH) is the ninth bit (bit 8).
20.4.6.2
During an SCI reception, the receive shift register shifts a frame in from the RXD pin. The SCI data register
is the read-only buffer between the internal data bus and the receive shift register.
After a complete frame shifts into the receive shift register, the data portion of the frame transfers to the
SCI data register. The receive data register full flag, RDRF, in SCI status register 1 (SCISR1) becomes set,
748
From TXD Pin
or Transmitter
SCRXD
LOOPS
RSRC
Receiver
Receiver Character Length
Character Reception
RXPOL
Control
SBR12:SBR0
Loop
Clock
Bus
Baud Divider
MC9S12XE-Family Reference Manual Rev. 1.25
Figure 20-20. SCI Receiver Block Diagram
WAKE
RAF
RE
ILT
PE
PT
M
Recovery
Detect Logic
Data
Detect Logic
Active Edge
Break
BRKDFE
Checking
Wakeup
Parity
Logic
Internal Bus
H
RXEDGIE
RXEDGIF
BRKDIF
BRKDIE
8
RDRF
11-Bit Receive Shift Register
7
OR
SCI Data Register
6
5
4
FE
NF
PE
3
R8
IDLE
Freescale Semiconductor
ILIE
RIE
2
Break IRQ
RX Active Edge IRQ
1
0
L
RWU
RDRF/OR
Idle IRQ
IRQ
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