MPC555
/
MPC556
MODULAR INPUT/OUTPUT SUBSYSTEM (MIOS1)
MOTOROLA
USER’S MANUAL
Rev. 15 October 2000
15-9
This register is used for MIOS1 factory testing and selecting between the MIOS1 pin
functions for the MPIO32B[0:3] and the developement support pin functions of
VFLS[0:1] and VF[0-2].
15.8.1.2 MIOS1 Vector Register
This register is used only in MCUs that use vectored interrupts. The MPC555 /
MPC556 does not use this register.
15.8.1.3 MIOS1 Module and Version Number Register
This read-only register contains the hard-coded values of the module and version
number.
15.8.1.4 MIOS1 Module Configuration Register
Table 15-3 MIOS1TPCR Bit Descriptions
Bit(s)
Name
Description
0
TEST
This bit is reserved for factory testing of the MIOS1. The test mode is disabled by reset.
1:13
—
Reserved
14
VF
Pin multiplex. This bit is used to determine the usage of the MIOS1 pins. Refer to the pad-ring
specification of the chip for details about the usage of this bit. This bit is set to 0 by reset.
0 = the concerned pins are dedicated to the MIOS1.
1 = alternate function
15
VFLS
Pin multiplex. This bit is used to determine the usage of the MIOS1 pins. Refer to the pad-ring
specification of the chip for details about the usage of this bit. This bit is set to 0 by reset.
0 = the concerned pins are dedicated to the MIOS1.
1 = alternate function
MIOS1VNR
— MIOS1 Module/Version Number Register
0x30 6804
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
MN
VN
Table 15-4 MIOS1VNR Bit Descriptions
Bit(s)
Name
Description
0:7
MN
Module number = 1 on the MPC555
/
MPC556. The MPC555 / MPC556 implements the MIOS1
module.
8:15
VN
Version number
MIOS1MCR
— MIOS1 Module Configuration Register
0x30 6806
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
STOP
0
FRZ
RST
RESERVED
SUPV
RESERVED
RESERVED (IARB)
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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