MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 225

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

Only trusted bus masters can modify the access control registers. If a non-trusted bus master
attempts to write any of the SACU control registers, the access is aborted with an error termination
and the registers remain unaffected.
The processor core is connected to bus master 0 and is always treated as a trusted bus master.
Accordingly, MPR0 is forced to 1 at reset.
11.4.3.2 Peripheral Access Control Registers (PACR0–PACR8)
Access to several on-chip peripherals is controlled by shared peripheral access control registers.
A single PACR defines the access level for each of the two modules. These modules only support
operand reads and writes. Each PACR follows the format illustrated in
PACRs and the modules that they control, refer to
Freescale Semiconductor
Bits
7–4
3–0
Name
MPRn
Figure 11-9. Peripheral Access Control Register (PACRn)
Address
Address
—
Reset
Reset
W
W
R
R LOCK1
Figure 11-8. Master Privilege Register (MPR)
Reserved. Should be cleared.
Each 1-bit field defines the access privilege level of the given bus master n.
0 All bus master accesses are in user mode.
1 All bus master accesses use the sourced user/supervisor attribute.
0
0
0
7
7
Table 11-8. MPR Field Descriptions
MCF5235 Reference Manual, Rev. 2
0
0
0
6
6
ACCESS_CTRL1
0
0
0
5
5
IPSBAR + 0x24 + Offset
IPSBAR + 0x020
0
0
0
4
4
Table
LOCK0
MPR3
Description
0
0
3
3
11-11.
MPR2
2
0
2
0
ACCESS_CTRL0
MPR1
1
0
1
1
System Access Control Unit (SACU)
Figure
MPR0
1
0
0
0
11-10. For a list of
11-15