Table of Contents
Advertisement
Table 16-15. RISM Command Descriptions (Continued)
Value
Command
04H
READ_BYTE
05H
READ_WORD
07H
WRITE_BYTE
08H
WRITE_WORD
PROGRAMMING THE NONVOLATILE MEMORY
Puts the contents of the (byte) memory address pointed to by the ADDR register
into the low byte of the DATA register.
ADDR
Before command
22
After command
22
Puts the contents of the (word) memory address pointed to by the ADDR register
into the low byte of the DATA register.
ADDR
Before command
22
After command
22
Puts the low byte of the DATA register into the memory address pointed to by the
ADDR register and increments ADDR by one.
ADDR
Before command
22
After command
22
NOTE: To write to an OTPROM location, V
an internal RAM location, V
Puts the low word of the DATA register into the memory address pointed to by the
ADDR register and increments ADDR by two.
ADDR
Before command
22
After command
22
To write to an OTPROM location, V
internal RAM location, V
PP
Description
DATA
14
14
DATA
14
14
80
DATA
16
2E
11
80
17
2E
11
80
must be at +12.5 volts. To write to
PP
can be at either +5.0 volts or +12.5 volts.
PP
DATA
16
2E
11
80
18
2E
11
80
NOTE
must be at +12.5 volts. To write to an
PP
can be at either +5.0 volts or +12.5 volts.
Memory Addr.
2215
2214
80
67
67
80
67
Memory Addr.
2215
2214
80
67
67
80
67
Memory Addr.
2217
2216
09
FF
FF
09
FF
09
Memory Addr.
2217
2216
09
FF
FF
09
80
09
16-37
Advertisement
Table of Contents
