HS7750RKCI01H Renesas Electronics America, HS7750RKCI01H Datasheet - Page 13

• Manufacturer Part Number: HS7750RKCI01H
• Description: ON CHIP DEBUG EMULATOR
• Manufacturer: Renesas Electronics America

Specifications of HS7750RKCI01H

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

7. Interrupt
8. Memory Access during User Program Break
9. Cache Operation during User Program Break
10. UBC
11. MFI Boot Mode
12. Using RWDT
When the NMIB bit in the ICR register is 1, the NMI interrupt is accepted during break and the
program is executed from the NMI interrupt vector. If the program cannot return normally
from the NMI interrupt routine or the value in the general-purpose register is not guaranteed, a
communication timeout error will occur.
The emulator can download the program for the flash memory area (refer to section 6.22,
Download Function to the Flash Memory Area, in the SuperH
Manual). Other memory write operations are enabled for the RAM area. Therefore, an
operation such as memory write or BREAKPOINT should be set only for the RAM area.
When the memory area can be written by the MMU, do not perform memory write,
BREAKPOINT break, or downloading.
When cache is enabled, the emulator accesses the memory by the following methods:
Therefore, when memory read or write is performed during user program break, the cache state
will be changed.
When [User] is specified in the [UBC mode] list box in the [Configuration] dialog box, the
UBC can be used in the user program.
Do not use the UBC in the user program as it is used by the E10A emulator when [EML] is
specified in the [UBC mode] list box in the [Configuration] dialog box.
When the MFI boot mode is used, be sure to allocate the boot program from the top of
MFRAM.
At power-on reset, the operation of RWDT is enabled. When RWDT is not used, be sure to
disable the operation of RWDT at the top of the user-reset program.
At memory write: Writes through the cache, then writes to the memory.
At memory read: Does not change the cache write mode that has been set.
TM
Family E10A Emulator User’s
7