LSI53C825AJ LSI, LSI53C825AJ Datasheet - Page 183

• Manufacturer Part Number: LSI53C825AJ
• Manufacturer: LSI

Specifications of LSI53C825AJ

• Lead Free Status / RoHS Status: Not Compliant

31
x
x
x
x
x
x
x
Registers: 0x5C–0x5F (0xDC–0xDF)
Scratch Register B (SCRATCHB)
Read/Write
SCRATCHB
Registers: 0x60–0x7F (0xE0–0xFF)
Scratch Registers C–J (SCRATCHC–SCRATCHJ)
Read/Write
These registers are general purpose scratch registers for user defined
functions. The LSI53C825A cannot fetch SCRIPTS instructions from this
location. The power-up value of these registers is indeterminate.
Operating Registers
x
x
x
x
x
Scratch Register B
This is a general purpose user definable scratch pad
register. Apart from CPU access, only register read/write
and memory moves directed at the SCRATCH register
alter its contents. The LSI53C825A cannot fetch
SCRIPTS instructions from this location. When bit 3 in
the
contains the base address for the 4 Kbyte internal RAM.
Setting
base address to appear in the
(SCRATCHB)
previously in the register remains intact. Any writes to this
register while the bit is set passes through the actual
Scratch Register B (SCRATCHB)
values are indeterminate.
x
x
Chip Test Two (CTEST2)
SCRATCHB
x
Chip Test Two (CTEST2),
x
x
register; any information that was
x
x
x
x
x
x
register is set, this register
Scratch Register B
x
register. The power-up
bit 3 only causes the
x
x
x
x
x
x
[31:0]
x
4-95
0
x