MC9S12C128MFAE Freescale Semiconductor, MC9S12C128MFAE Datasheet - Page 390
![IC MCU 128K FLASH 25MHZ 48-LQFP](/photos/12/20/122066/mc9s12c128mfae_sml.jpg)
MC9S12C128MFAE
Manufacturer Part Number
MC9S12C128MFAE
Description
IC MCU 128K FLASH 25MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Specifications of MC9S12C128MFAE
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
128KB (128K 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 ~ 125°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
3.3 V to 5.5 V
Maximum Operating Temperature
+ 125 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
Package
48LQFP
Family Name
HCS12
Maximum Speed
25 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12C128MFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 13 Serial Communications Interface (S12SCIV2) Block Description
13.3.2.4
The SCISR1 and SCISR2 registers provides inputs to the MCU for generation of SCI interrupts. Also,
these registers can be polled by the MCU to check the status of these bits. The flag-clearing procedures
require that the status register be read followed by a read or write to the SCI Data Register.It is permissible
to execute other instructions between the two steps as long as it does not compromise the handling of I/O,
but the order of operations is important for flag clearing.
Read: Anytime
Write: Has no meaning or effect
390
Module Base + 0x_0004
Reset
TDRE
Field
RWU
Field
SBK
TC
1
0
7
6
W
R
TDRE
Receiver Wakeup Bit — Standby state
0 Normal operation.
1 RWU enables the wakeup function and inhibits further receiver interrupt requests. Normally, hardware wakes
Send Break Bit — Toggling SBK sends one break character (10 or 11 logic 0s, respectively 13 or 14 logics 0s
if BRK13 is set). Toggling implies clearing the SBK bit before the break character has finished transmitting. As
long as SBK is set, the transmitter continues to send complete break characters (10 or 11 bits, respectively 13
or 14 bits).
0 No break characters
1 Transmit break characters
Transmit Data Register Empty Flag — TDRE is set when the transmit shift register receives a byte from the
SCI data register. When TDRE is 1, the transmit data register (SCIDRH/L) is empty and can receive a new value
to transmit.Clear TDRE by reading SCI status register 1 (SCISR1), with TDRE set and then writing to SCI data
register low (SCIDRL).
0 No byte transferred to transmit shift register
1 Byte transferred to transmit shift register; transmit data register empty
Transmit Complete Flag — TC is set low when there is a transmission in progress or when a preamble or break
character is loaded. TC is set high when the TDRE flag is set and no data, preamble, or break character is being
transmitted.When TC is set, the TXD out signal becomes idle (logic 1). Clear TC by reading SCI status register
1 (SCISR1) with TC set and then writing to SCI data register low (SCIDRL). TC is cleared automatically when
data, preamble, or break is queued and ready to be sent. TC is cleared in the event of a simultaneous set and
clear of the TC flag (transmission not complete).
0 Transmission in progress
1 No transmission in progress
SCI Status Register 1 (SCISR1)
0
7
the receiver by automatically clearing RWU.
= Unimplemented or Reserved
TC
0
6
Table 13-4. SCICR2 Field Descriptions (continued)
Figure 13-6. SCI Status Register 1 (SCISR1)
Table 13-5. SCISR1 Field Descriptions
RDRF
MC9S12C-Family / MC9S12GC-Family
0
5
Rev 01.24
IDLE
0
4
Description
Description
OR
0
3
NF
0
2
Freescale Semiconductor
FE
0
1
PF
0
0
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