MC9S12P32CFT Freescale Semiconductor, MC9S12P32CFT Datasheet - Page 260

• Manufacturer Part Number: MC9S12P32CFT
• Description: MCU 16BIT 32K FLASH 48-QFN
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12P32CFT

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 32MHz
• Connectivity: CAN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.72 V ~ 5.5 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-QFN Exposed Pad
• Processor Series: S12P
• Core: HCS12
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: KIT33812ECUEVME, DEMO9S12PFAME
• Package: 48QFN EP
• Family Name: HCS12
• Maximum Speed: 32 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 16 Bit
• Interface Type: CAN/SCI/SPI
• On-chip Adc: 10-chx12-bit
• Number Of Timers: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Freescale’s Scalable Controller Area Network (S12MSCANV3)
8.3.2.3
The CANBTR0 register configures various CAN bus timing parameters of the MSCAN module.
1. Read: Anytime
260
Module Base + 0x0002
Write: Anytime in initialization mode (INITRQ = 1 and INITAK = 1)
SJW[1:0]
BRP[5:0]
WUPM
SLPAK
INITAK
Field
Field
7-6
5-0
2
1
0
Reset:
W
R
Wake-Up Mode — If WUPE in CANCTL0 is enabled, this bit defines whether the integrated low-pass filter is
applied to protect the MSCAN from spurious wake-up (see
0 MSCAN wakes up on any dominant level on the CAN bus
1 MSCAN wakes up only in case of a dominant pulse on the CAN bus that has a length of T
Sleep Mode Acknowledge — This flag indicates whether the MSCAN module has entered sleep mode (see
Section 8.4.5.5, “MSCAN Sleep
Sleep mode is active when SLPRQ = 1 and SLPAK = 1. Depending on the setting of WUPE, the MSCAN will
clear the flag if it detects activity on the CAN bus while in sleep mode.
0 Running — The MSCAN operates normally
1 Sleep mode active — The MSCAN has entered sleep mode
Initialization Mode Acknowledge — This flag indicates whether the MSCAN module is in initialization mode
(see
mode request. Initialization mode is active when INITRQ = 1 and INITAK = 1. The registers CANCTL1,
CANBTR0, CANBTR1, CANIDAC, CANIDAR0–CANIDAR7, and CANIDMR0–CANIDMR7 can be written only by
the CPU when the MSCAN is in initialization mode.
0 Running — The MSCAN operates normally
1 Initialization mode active — The MSCAN has entered initialization mode
Synchronization Jump Width — The synchronization jump width defines the maximum number of time quanta
(Tq) clock cycles a bit can be shortened or lengthened to achieve resynchronization to data transitions on the
CAN bus (see
Baud Rate Prescaler — These bits determine the time quanta (Tq) clock which is used to build up the bit timing
(see
MSCAN Bus Timing Register 0 (CANBTR0)
SJW1
Table
Section 8.4.4.5, “MSCAN Initialization
0
7
8-7).
Table 8-4. CANCTL1 Register Field Descriptions (continued)
Table
Figure 8-6. MSCAN Bus Timing Register 0 (CANBTR0)
SJW1
SJW0
0
0
6
Table 8-5. CANBTR0 Register Field Descriptions
8-6).
Table 8-6. Synchronization Jump Width
S12P-Family Reference Manual, Rev. 1.13
BRP5
Mode”). It is used as a handshake flag for the SLPRQ sleep mode request.
0
5
Mode”). It is used as a handshake flag for the INITRQ initialization
BRP4
SJW0
0
4
0
Description
Description
Section 8.4.5.5, “MSCAN Sleep
BRP3
3
0
Synchronization Jump Width
BRP2
0
2
1 Tq clock cycle
Access: User read/write
Freescale Semiconductor
BRP1
0
1
Mode”).
wup
BRP0
0
0
(1)