Modular Input/Output Subsystem (MIOS14)
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
17-15
17.6.1.4
MIOS14 Module Configuration Register (MIOS14MCR)
The MIOS14MCR register is a collection of read/write stop, freeze, reset, and supervisor bits, as well as
interrupt arbitration number bits. These bits are detailed in
Table 17-4. MIOS14VNR Bit Descriptions
Bits
Name
Description
0:7
MN
Module number = 0x0E on the MPC561/MPC563
8:15
VN
Version number. May change with different revisions of the device.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field STOP RSV
FRZ
RST
—
SUPV
—
SRESET
0000_0000_0000_0000
Addr
0x30 6806
Figure 17-7. Module Configuration Register (MIOS14MCR)
Table 17-5. MIOS14MCR Bit Descriptions
Bits
Name
Description
0
STOP
Stop enable — The STOP bit, while asserted, activates the MIOB freeze signal regardless of the
state of the IMB3 FREEZE signal. The MIOB freeze signal is further validated in some
submodules with internal freeze enable bits in order for the submodule to be stopped. The
MBISM continues to operate to allow the CPU access to the submodule’s registers. The MIOB
freeze signal remains active until reset or until the STOP bit is written to zero by the CPU (via the
IMB3). The STOP bit is cleared by reset.
0 Allows MIOS14 operation.
1 Selectively stops MIOS14 operation.
1
—
Reserved
2
FRZ
Freeze enable — The FRZ bit, while asserted, activates the MIOB freeze signal only when the
IMB3 FREEZE signal is active. The MIOB freeze signal is further validated in some submodules
with internal freeze enable bits in order for the submodule to be frozen. The MBISM continues to
operate to allow the CPU access to the submodule’s registers. The MIOB freeze signal remains
active until the FRZ bit is written to zero or the IMB3 FREEZE signal is negated. The FRZ bit is
cleared by reset.
0 Ignores the FREEZE signal on the IMB3, allows MIOS14 operation.
1 Selectively stops MIOS14 operation when the FREEZE signal appears on the IMB3.
3
RST
Module reset — The RST bit is always read as 0 and can be written to 1. When the RST bit is
written to 1 operation of the MIOS14 completely stops and resets all the values in the submodule.
This completely stops the operation of the MIOS14 and reset all the values in the submodules
registers that are affected by reset. This bit provides a way of resetting the complete MIOS14
module regardless of the reset state of the CPU. The RST bit is cleared by reset.
0 Writing a 0 to RST has no effect.
1 Reset the MIOS14 submodules.
4:7
—
Reserved
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
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Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...