MC9S12E128CPV Freescale Semiconductor, MC9S12E128CPV Datasheet - Page 257

• Manufacturer Part Number: MC9S12E128CPV
• Description: Microcontrollers (MCU) 16 Bit 16MHz
• Manufacturer: Freescale Semiconductor

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

8.3.2.6
Read: anytime; reading accesses SCI receive data register
Write: anytime; writing accesses SCI transmit data register; writing to R8 has no effect
Freescale Semiconductor
Reset
Reset
R[7:0]
T[7:0}
Field
Field
7:0
R8
T8
7
6
W
W
R
R
Received Bit 8 — R8 is the ninth data bit received when the SCI is configured for 9-bit data format (M = 1).
Transmit Bit 8 — T8 is the ninth data bit transmitted when the SCI is configured for 9-bit data format (M = 1).
Received bits 7 through 0 — For 9-bit or 8-bit data formats
Transmit bits 7 through 0 — For 9-bit or 8-bit formats
R8
R7
T7
SCI Data Registers (SCIDRH and SCIDRL)
0
0
7
7
If the value of T8 is the same as in the previous transmission, T8 does not
have to be rewritten.The same value is transmitted until T8 is rewritten
In 8-bit data format, only SCI data register low (SCIDRL) needs to be
accessed.
When transmitting in 9-bit data format and using 8-bit write instructions,
write first to SCI data register high (SCIDRH) then to SCIDRL.
= Unimplemented or Reserved
R6
T8
T6
0
0
6
6
Figure 8-10. SCI Data Register Low (SCIDRL)
Figure 8-9. SCI Data Register High (SCIDRH)
Table 8-10. SCIDRL Field Descriptions
Table 8-9. SCIDRH Field Descriptions
MC9S12E128 Data Sheet, Rev. 1.07
R5
T5
0
0
0
5
5
NOTE
R4
T4
0
0
0
4
4
Description
Description
R3
T3
0
0
0
3
3
Chapter 8 Serial Communication Interface (SCIV3)
R2
T2
0
0
0
2
2
R1
T1
0
0
0
1
1
R0
T0
0
0
0
0
0
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