MC68306FC16B Freescale Semiconductor, MC68306FC16B Datasheet - Page 138

• Manufacturer Part Number: MC68306FC16B
• Description: IC MPU INTEGRATED 132-PQFP
• Manufacturer: Freescale Semiconductor

Specifications of MC68306FC16B

• Processor Type: M683xx 32-Bit
• Speed: 16MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-MQFP, 132-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

Bits 7, 6, 3, 2—Reserved
COS2, COS1, COS0—Change-of-State
IP2, IP1, IP0—Current State
6.4.1.9 AUXILIARY CONTROL REGISTER (DUACR). The DUACR selects which baud
rate is used and controls the handshake of the transmitter/receiver.
BRG—Baud Rate Generator Set Select
CTMS2–0— Counter/Timer Mode and Source Select
6-30
Starting two serial clock periods after reset, the IPx bits reflect the state of the IPx pins.
If a CTS≈ pin is detected as asserted at that time, the associated COSx bit will be set,
which will initiate an interrupt if the corresponding IECx bit of the DUACR register is
enabled.
Table 6-10 lists the counter/timer mode and source select bit fields.
1 = A change-of-state (high-to-low or low-to-high transition), lasting longer than 25–
0 = No change-of-state has occurred since the last time the CPU read the DUIPCR.
1 = The current state of the respective IPx input is logic one (negated, if used as
0 = The current state of the respective IPx input is logic zero (asserted, if used as
1 = Set 2 of the available baud rates is selected.
0 = Set 1 of the available baud rates is selected. Refer to 6.4.1.4 Clock-Select
50 s has occurred at the corresponding IPx input. When these bits are set, the
DUACR can be programmed to generate an interrupt to the CPU.
A read of the DUIPCR also clears the DUISR COS bit.
CTS ).
CTS ).
Register (DUCSR) for more information on the baud rates.
DUACR
Write Only
RESET:
BRG
Freescale Semiconductor, Inc.
7
0
For More Information On This Product,
CTMS2 CTMS1 CTMS0
6
0
MC68306 USER'S MANUAL
Go to: www.freescale.com
5
0
4
0
3
–
0
IEC2
2
0
IEC1
1
0
IEC0
0
0
MOTOROLA