MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 470

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

14.5.6 QSMCM Test Register (QTEST)
14.5.7 QSMCM Interrupt Level Registers (QDSCI_IL, QSPI_IL)
QDSCI_IL — QSM2 Dual SCI Interrupt Level Register
MPC555
USER’S MANUAL
RESET:
MSB
Bit(s)
12:15
Bit(s)
9:11
0
0
8:15
The QTEST register is used for factory testing of the MCU.
The QDSCI_ILI and QSPI_IL registers determine the interrupt level requested by the
QSMCM. The two SCI submodules (DSCI) share a 5-bit interrupt level field, ILDSCI.
The QSPI uses a separate field, ILQSPI. The level value is used to determine which
interrupt is serviced first when two or more modules or external peripherals simulta-
neously request an interrupt. The user can select among 32 levels. This register can
be accessed only when the CPU is in supervisor mode.
2:7
0:2
3:7
0
1
8
Reserved
/
MPC556
1
0
ILDSCI
Name
STOP
SUPV
Name
FRZ1
IARB
—
—
—
—
2
0
3
0
Stop enable. Refer to
0 = Normal clock operation
1 = Internal clocks stopped
Freeze1 bit. Refer to
0 = Ignore the FREEZE signal
1 = Halt the QSMCM (on transfer boundary)
Reserved
Supervisor /Unrestricted. Refer to
0 = Assigned registers are unrestricted (user access allowed)
1 = Assigned registers are restricted (only supervisor access allowed)
Reserved
This field currently has no effect. It is implemented for future interrupt arbitration
schemes.
Reserved
Interrupt level of SCIs
00000 = lowest interrupt level request (level 0)
11111 = highest interrupt level request (level 31)
Reserved
Table 14-4 QSMCMMCR Bit Descriptions
QUEUED SERIAL MULTI-CHANNEL MODULE
Table 14-5 QDSCI_IL Bit Descriptions
4
0
ILDSCI
5
0
Rev. 15 October 2000
6
0
14.5.2 Freeze
14.5.1 Low-Power Stop
7
0
14.5.3 Access
8
Operation.
Description
Description
9
Operation.
10
Protection.
RESERVED
11
12
13
0x30 5004
MOTOROLA
14
LSB
14-8
15