S9S12P32J0VFTR Freescale Semiconductor, S9S12P32J0VFTR Datasheet - Page 376

• Manufacturer Part Number: S9S12P32J0VFTR
• Description: 16-bit Microcontrollers - MCU 16 BIT 32K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of S9S12P32J0VFTR

• Rohs: yes
• Core: S12
• Processor Series: MC9S12P
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 16 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 2 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3.15 V to 5.5 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: QFN-48
• Mounting Style: SMD/SMT

Serial Communication Interface (S12SCIV5)
Read: Anytime; reading accesses SCI receive data register
Write: Anytime; writing accesses SCI transmit data register; writing to R8 has no effect
11.4
This section provides a complete functional description of the SCI block, detailing the operation of the
design from the end user perspective in a number of subsections.
Figure 11-14
communication between the CPU and remote devices, including other CPUs. The SCI transmitter and
receiver operate independently, although they use the same baud rate generator. The CPU monitors the
status of the SCI, writes the data to be transmitted, and processes received data.
376
Module Base + 0x0007
SCIDRH
SCIDRH
SCIDRL
Reset
R[7:0]
T[7:0]
Field
7:0
R8
T8
7
6
W
R
Functional Description
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).
R7:R0 — Received bits seven through zero for 9-bit or 8-bit data formats
T7:T0 — Transmit bits seven through zero for 9-bit or 8-bit formats
R7
T7
0
7
shows the structure of the SCI module. The SCI allows full duplex, asynchronous, serial
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 SCIDRL.
R6
T6
0
6
Table 11-13. SCIDRH and SCIDRL Field Descriptions
Figure 11-13. SCI Data Registers (SCIDRL)
S12P-Family Reference Manual, Rev. 1.13
R5
T5
0
5
NOTE
R4
T4
0
4
Description
R3
T3
0
3
R2
T2
0
2
Freescale Semiconductor
R1
T1
0
1
R0
T0
0
0