MC9S12C64CFAE Freescale Semiconductor, MC9S12C64CFAE Datasheet - Page 387
![IC MCU 64K FLASH 4K RAM 48-LQFP](/photos/12/39/123949/mc9s12c64cfae_sml.jpg)
MC9S12C64CFAE
Manufacturer Part Number
MC9S12C64CFAE
Description
IC MCU 64K FLASH 4K RAM 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Specifications of MC9S12C64CFAE
Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
CAN, EBI/EMI, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
31
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Processor Series
S12C
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
4 KB
Interface Type
CAN/SCI/SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
31
Number Of Timers
8
Operating Supply Voltage
- 0.3 V to + 6.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
M68EVB912C32EE
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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13.3.2.1
The SCI Baud Rate Register is used by the counter to determine the baud rate of the SCI. The formula for
calculating the baud rate is:
where:
Read: Anytime. If only SCIBDH is written to, a read will not return the correct data until SCIBDL is
written to as well, following a write to SCIBDH.
Write: Anytime
Freescale Semiconductor
Module Base + 0x_0001
Module Base + 0x_0000
SBR[12:0]
Reset
Reset
Field
4–0
7–0
W
W
R
R
SCI baud rate = SCI module clock / (16 x BR)
BR is the content of the SCI baud rate registers, bits SBR12 through SBR0. The baud rate registers
can contain a value from 1 to 8191.
SBR7
SCI Baud Rate Bits — The baud rate for the SCI is determined by these 13 bits.
Note: The baud rate generator is disabled until the TE bit or the RE bit is set for the first time after reset. The
SCI Baud Rate Registers (SCIBDH and SCHBDL)
0
0
0
7
7
baud rate generator is disabled when BR = 0.
Writing to SCIBDH has no effect without writing to SCIBDL, since writing to SCIBDH puts the data in a
temporary location until SCIBDL is written to.
= Unimplemented or Reserved
Figure 13-3. SCI Baud Rate Registers (SCIBDH and SCIBDL)
SBR6
0
0
0
6
6
Table 13-1. SCIBDH AND SCIBDL Field Descriptions
SBR5
MC9S12C-Family / MC9S12GC-Family
0
0
0
5
5
Chapter 13 Serial Communications Interface (S12SCIV2) Block Description
SBR12
SBR4
Rev 01.24
0
0
4
4
Description
SBR11
SBR3
0
0
3
3
SBR10
SBR2
0
1
2
2
SBR9
SBR1
0
0
1
1
SBR8
SBR0
0
0
0
0
387
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