Pci Host/Agent Configuration; Boot Sequencer Configuration - Freescale Semiconductor MPC8313E Family Reference Manual

Reset, Clocking, and Initialization
Table 4-11. Reset Configuration Word High Bit Settings (continued)
Bits Name
6–7 BOOTSEQ

Boot sequencer configuration.

See
8 SWEN Software watchdog enable. Selects whether the software watchdog is enabled to start counting down
immediately when coming out of reset. The user can override this value by writing to the system
watchdog control register (SWCRR[SWEN]) during system initialization.
0 Disabled
1 Enabled
9–11 ROMLOC Boot ROM interface location.
This bit combined with bit RLEXT determines where the device boots from. See
ROM Location,"
12–13 RLEXT Boot ROM location extension.
This bit combined with bit ROMLOC determines where the device boots from. See
"Boot ROM Location,"
00 Legacy mode—allows for booting from on-chip peripherals. Refer to
01 NAND Flash mode—allows for booting from NAND Flash devices. Refer to
10 Reserved
11 Reserved
14–15 — Reserved, should be cleared.
16–18 TSEC1M TSEC1 mode.
See
19–21 TSEC2M TSEC2 mode.
See
22–27 — Reserved, should be cleared.
28 TLE True little-endian. See
29 LALE Local bus LALE signal timing. See
30–31 — Reserved, should be cleared.
4.3.2.2.1

PCI Host/Agent Configuration

The PCIHOST configuration parameter, shown in
or as a PCI agent device. In host mode, the device can immediately master transactions to the PCI interface.
If the device is a PCI agent device, the device is disabled from mastering PCI transactions until the external
host enables it to do so. The external host does this by setting the control registers of the device's interfaces
appropriately. See details in the PCI programming model described in
Map/Register Definitions."
RCWHR Bit Field Name
0 PCIHOST
MPC8313E PowerQUICC II Pro Integrated Processor Family Reference Manual, Rev. 3
4-16
Section 4.3.2.2.3, "Boot Sequencer
for more information.
for more information.
information.
information.
Section 4.3.2.2.5, "eTSEC1 Mode,"
Section 4.3.2.2.6, "eTSEC2 Mode,"
Section 4.3.2.2.7, "e300 Core True Little-Endian,"
Table 4-12. PCI Host/Agent Configuration
Value
(Binary)
0 The device acts as a PCI agent device.
1 The device acts as the host processor (default).
Description
Configuration," for more information.
for more information.
for more information.
Section 4.3.2.2.8, "LALE Configuration,"
Table 4-12, configures the device to act as a PCI host
Section 13.3, "PCI Memory
Meaning
Section 4.3.2.2.4, "Boot
Section 4.3.2.2.4,
Table 4-15 for more
Table 4-15 for more
for more information.
for more information.
Freescale Semiconductor