Queued Serial Multi-Channel Module
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
15-21
15.6.1.5
QSPI Status Register (SPSR)
The SPSR contains information concerning the current serial transmission. Only the QSPI can set bits in
this register. To clear status flags, the CPU reads SPSR with the flags set and then writes the SPSR with
zeros in the appropriate bits. Writes to CPTQP have no effect.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
—
LOOPQ HMIE HALT
SPSR*
SRESET
0000_0000_0000_0000
Addr
0x30 501E
Note:
Figure 15-14. SPCR3 — QSPI Control Register 3
Table 15-17. SPCR3 Bit Descriptions
Bits
Name
Description
0:4
—
Reserved
5
LOOPQ
QSPI loop mode. LOOPQ controls feedback on the data serializer for testing.
0 Feedback path disabled.
1 Feedback path enabled.
6
HMIE
HALTA and MODF interrupt enable. HMIE enables interrupt requests generated by the HALTA
status flag or the MODF status flag in SPSR.
0 HALTA and MODF interrupts disabled.
1 HALTA and MODF interrupts enabled.
7
HALT
Halt QSPI. When HALT is set, the QSPI stops on a queue boundary. It remains in a defined state
from which it can later be restarted. Refer to
Section 15.6.4.1, “Enabling, Disabling, and Halting
.”
0 QSPI operates normally.
1 QSPI is halted for subsequent restart.
8:15
SPSR
See
for bit descriptions.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
SPCR3
1
SPIF MODF HALTA
CPTQP
SRESET
0000_0000_0000_0000
Addr
0x30 501E (SPSR)
2
1
See bit descriptions in
2
SPSR can be accessed as an 8-bit register at location 0x30 501F or 0x30 541F.
Figure 15-15. QSPI Status Register (SPSR)
Summary of Contents for MPC561
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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...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
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...