Motorola CPU32 User's Guide download pdf (Page 91)

90 CPU32 Emulation

Chapter 6: Using Internal Registers (SIM and EMSIM Registers)

Internal Registers (SIM and EMSIM Registers)

The purpose of SIM Registers

The CPU32 family of processors provides a variety of internal

peripheral and memory modules that are directly connected to the

CPU32 core through an internal bus. These modules are configured

through memory mapped register banks. The base address of the

are established through Module Configuration Registers (e.g. MCR)

and Base Address Registers (e.g. CSBARx). A common module

throughout the family is a System Integration Module (SIM) which

controls such things as clock speed and external chip selects.

The purpose of EMSIM registers

The emulator maintains a set of pseudo registers known as EMSIM

registers. There is a one to one correspondence between the EMSIM

registers and the target SIM registers. The purpose of the EMSIM

registers is to provide a stable, known set of registers that can be

copied into the SIM to establish an initial SIM state or re-establish a

previous known state. This is useful because it allows emulator to

communicate with a target without first running initialization code to

set up the chip select registers.

The names and values of the EMSIM registers are displayed in the

Configuration window of the Emulation Control Interface. The SIM

registers can be viewed in the Registers window.

Note

The emulator supports configuration of the internal registers in the System

Integration Module (SIM) and other important Module Configuration Registers

and Base Address Registers. To simplify the interface, all configurable registers

will be referred to as SIM registers even if they are technically part of another

module.

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Motorola CPU32 User's Guide Page 91