MC9S12XEQ384CAL Freescale Semiconductor, MC9S12XEQ384CAL Datasheet - Page 592
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MC9S12XEQ384CAL
Manufacturer Part Number
MC9S12XEQ384CAL
Description
MCU 16BIT 384K FLASH 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12XEP768CAL.pdf
(1328 pages)
Specifications of MC9S12XEQ384CAL
Core Processor
HCS12X
Core Size
16-Bit
Speed
50MHz
Connectivity
CAN, EBI/EMI, I²C, IrDA, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
91
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
24K x 8
Voltage - Supply (vcc/vdd)
1.72 V ~ 5.5 V
Data Converters
A/D 16x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
112-LQFP
Processor Series
S12XE
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
24 KB
Interface Type
CAN, SCI, SPI
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
91
Number Of Timers
25
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
KIT33812ECUEVME, EVB9S12XEP100, DEMO9S12XEP100
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 16 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Chapter 15 Inter-Integrated Circuit (IICV3) Block Description
Wait mode is entered via execution of a CPU WAI instruction. In the event that the IBSWAI bit is set, all
clocks internal to the IIC will be stopped and any transmission currently in progress will halt.If the CPU
were woken up by a source other than the IIC module, then clocks would restart and the IIC would resume
from where was during the previous transmission. It is not possible for the IIC to wake up the CPU when
its internal clocks are stopped.
592
RESERVED
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
IBSWAI
MS/SL
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
Tx/Rx
TXAK
RSTA
Field
IBEN
IBIE
7
6
5
4
3
2
1
0
I-Bus Enable — This bit controls the software reset of the entire IIC bus module.
0 The module is reset and disabled. This is the power-on reset situation. When low the interface is held in reset
1 The IIC bus module is enabled.This bit must be set before any other IBCR bits have any effect
If the IIC bus module is enabled in the middle of a byte transfer the interface behaves as follows: slave mode
ignores the current transfer on the bus and starts operating whenever a subsequent start condition is detected.
Master mode will not be aware that the bus is busy, hence if a start cycle is initiated then the current bus cycle
may become corrupt. This would ultimately result in either the current bus master or the IIC bus module losing
arbitration, after which bus operation would return to normal.
I-Bus Interrupt Enable
0 Interrupts from the IIC bus module are disabled. Note that this does not clear any currently pending interrupt
1 Interrupts from the IIC bus module are enabled. An IIC bus interrupt occurs provided the IBIF bit in the status
Master/Slave Mode Select Bit — Upon reset, this bit is cleared. When this bit is changed from 0 to 1, a START
signal is generated on the bus, and the master mode is selected. When this bit is changed from 1 to 0, a STOP
signal is generated and the operation mode changes from master to slave.A STOP signal should only be
generated if the IBIF flag is set. MS/SL is cleared without generating a STOP signal when the master loses
arbitration.
0 Slave Mode
1 Master Mode
Transmit/Receive Mode Select Bit — This bit selects the direction of master and slave transfers. When
addressed as a slave this bit should be set by software according to the SRW bit in the status register. In master
mode this bit should be set according to the type of transfer required. Therefore, for address cycles, this bit will
always be high.
0 Receive
1 Transmit
Transmit Acknowledge Enable — This bit specifies the value driven onto SDA during data acknowledge cycles
for both master and slave receivers. The IIC module will always acknowledge address matches, provided it is
enabled, regardless of the value of TXAK. Note that values written to this bit are only used when the IIC bus is a
receiver, not a transmitter.
0 An acknowledge signal will be sent out to the bus at the 9th clock bit after receiving one byte data
1 No acknowledge signal response is sent (i.e., acknowledge bit = 1)
Repeat Start — Writing a 1 to this bit will generate a repeated START condition on the bus, provided it is the
current bus master. This bit will always be read as a low. Attempting a repeated start at the wrong time, if the bus
is owned by another master, will result in loss of arbitration.
1 Generate repeat start cycle
Reserved — Bit 1 of the IBCR is reserved for future compatibility. This bit will always read 0.
I Bus Interface Stop in Wait Mode
0 IIC bus module clock operates normally
1 Halt IIC bus module clock generation in wait mode
but registers can be accessed
condition
register is also set.
MC9S12XE-Family Reference Manual , Rev. 1.23
Table 15-8. IBCR Field Descriptions
Description
Freescale Semiconductor
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