参数资料
型号: RM48L950PGET
厂商: TEXAS INSTRUMENTS INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 200 MHz, RISC MICROCONTROLLER, PQFP144
封装: GREEN, PLASTIC, LQFP-144
文件页数: 128/154页
文件大小: 2807K
代理商: RM48L950PGET
PRODUCTPREVIEW
SPNS174
– SEPTEMBER 2011
4.9.3
Master/Slave Access Privileges
The table below lists the access permissions for each bus master on the device. A bus master is a module
that can initiate a read or a write transaction on the device.
Each slave module on the main interconnect is listed in the table. A "Yes" indicates that the module listed
in the "MASTERS" column can access that slave module.
Table 4-22. Master / Slave Access Matrix
MASTERS
ACCESS MODE
SLAVES ON MAIN SCR
Flash Module
Non-CPU
CRC
EMIF, Ethernet,
Peripheral
Bus2 Interface:
Accesses to
USB Slave
Control
OTP, ECC,
Program Flash
Interfaces
Registers, All
EEPROM Bank
and CPU Data
Peripheral
RAM
Memories, And
All System
Module Control
Registers And
Memories
CPU READ
User/Privilege
Yes
CPU WRITE
User/Privilege
No
Yes
DMA
User
Yes
POM
User
Yes
DMM
User
Yes
DAP
Privilege
Yes
HTU1
Privilege
No
Yes
HTU2
Privilege
No
Yes
EMAC
User
No
Yes
No
Yes
No
OHCI
User
No
Yes
No
Yes
No
4.9.3.1
Special Notes on Accesses to Certain Slaves
Write accesses to the Power Domain Management Module (PMM) control registers are limited to the CPU
(master id = 1). The other masters can only read from these registers.
A debugger can also write to the PMM registers. The master-id check is disabled in debug mode.
The device contains dedicated logic to generate a bus error response on any access to a module that is in
a power domain that has been turned OFF.
Copyright
2011, Texas Instruments Incorporated
System Information and Electrical Specifications
75
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