MSC8144E Reference Manual, Rev. 3
15-34
Freescale
Semiconductor
PCI
15.2.4 PCI Memory-Mapped Control and Status Registers
This section describes the control and status registers.
15.2.4.1 PCI Error Status Register (PCI_ESR)
PCI_ESR contains status bits for various types of error conditions captured by the VCOP. Each
status bit is set when the corresponding error condition is captured. PCI_ESR is a write-1-to-clear
type register. A bit is cleared whenever the register is written, and the data in the corresponding
bit location is a 1. Table 15-24 shows the bit settings of the PCI_ESR.
TLTD
2
Target Latency Timeout Disable
This bit determines whether the VCOP, while acting as a PCI target,
times out when the first data phase of a transaction has not completed
in 16 PCI cycles.
0
Target latency timeout
enabled.
1
Target latency timeout
disabled.
MLTD
1
Initiator Latency Timer Disable
This bit determines whether the VCOP, while acting as a PCI initiator,
terminates a transaction upon the expiration of the initiator latency
timer.
0
Initiator latency timer
enabled.
1
Initiator latency timer
disabled.
0
Reserved. Write to 0 for future compatibility.
PCI_ESR
PCI Error Status Register
Offset 0x000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
MERR
—
Type
R/W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
—
APAR
PCI
SERR
MP
ERR
TP
ERR
NO
RSP
TABT
—
Type
R/W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Table 15-24. PCI_ESR Field Descriptions
Bits
Description
Settings
MERR
31
Multiple Errors
This bit is set if any other bit of this register is 1 and the same error type
occurs again.
0
No multiple error
1
Multiple errors detected
—
30–11
Reserved. Write to 0 for future compatibility.
APAR
10
Address Parity Error
This bit is set when there is an address parity error on a PCI access
initiated by a device other than this VCOP.
0
No error
1
Error detected
Table 15-23. PCIFCR Field Descriptions (Continued)
Bits
Description
Settings
Summary of Contents for MSC8144E
Page 1: ...MSC8144E Reference Manual Quad Core Media Signal Processor MSC8144ERM Rev 3 July 2009 ...
Page 48: ...MSC8144E Reference Manual Rev 3 xlviii Freescale Semiconductor ...
Page 86: ...MSC8144E Reference Manual Rev 3 1 38 Freescale Semiconductor Overview ...
Page 168: ...MSC8144E Reference Manual Rev 3 3 60 Freescale Semiconductor External Signals ...
Page 242: ...MSC8144E Reference Manual Rev 3 5 26 Freescale Semiconductor Reset ...
Page 314: ...MSC8144E Reference Manual Rev 3 8 24 Freescale Semiconductor General Configuration Registers ...
Page 414: ...MSC8144E Reference Manual Rev 3 10 14 Freescale Semiconductor MSC8144E SC3400 DSP Subsystem ...
Page 452: ...MSC8144E Reference Manual Rev 3 11 38 Freescale Semiconductor Internal Memory Subsystem ...
Page 520: ...MSC8144E Reference Manual Rev 3 12 68 Freescale Semiconductor DDR SDRAM Memory Controller ...
Page 1070: ...MSC8144E Reference Manual Rev 3 21 28 Freescale Semiconductor Timers ...