User`s manual

SuperH™ Family E10A-USB Emulator Section 2 Software Specifications when Using the Emulator
REJ10J1941-0300 Rev. 3.00 Page 15 of 46
Aug 25, 2010
Section 2 Software Specifications when Using the Emulator
2.1 Differences between the SH72546RFCC, SH72546R, SH72544R,
SH72543R, SH72531RFCC, SH72531FCC, and SH72531 and the
Emulator
1. When the emulator system is initiated, it initializes the general registers and part of the control
registers as shown in table 2.1. The initial values of the MCU are undefined.
Table 2.1 Register Initial Values at Emulator Link Up
Register Emulator at Link Up
R0 to R14 H'00000000
R15 (SP) Value of the SP in the power-on reset vector table
PC Value of the PC in the power-on reset vector table
SR H'000000F0
GBR H'00000000
VBR H'00000000
TBR H'00000000
MACH H'00000000
MACL H'00000000
PR H'00000000
FPSCR* H'00040001
FPUL* H'00000000
FPR0-15* H'00000000
Note: If the MCU does not incorporate the floating-point unit (FPU), these registers are not
displayed.
Note: When a value of the interrupt mask bit in the SR register is changed in the [Registers]
window, it is actually reflected in that register immediately before execution of the user
program is started. It also applies when the value is changed by the REGISTER_SET
command.
2. The emulator uses the H-UDI; do not access the H-UDI.