Intel 87C196CB Manual De Usuario
10-1
CHAPTER 10
PROGRAMMING THE NONVOLATILE MEMORY
The 87C196CB has 56 Kbytes of OTPROM (FF2000–FFFFFFH), while the 8XC196NT has only
32 Kbytes (FF2000–FF9FFFH). The 87C196CB’s programming signals, registers, and proce-
dures are the same as those of the 8XC196NT. This chapter describes the differences in memory
mapping and programming circuits for the 87C196CB.
32 Kbytes (FF2000–FF9FFFH). The 87C196CB’s programming signals, registers, and proce-
dures are the same as those of the 8XC196NT. This chapter describes the differences in memory
mapping and programming circuits for the 87C196CB.
10.1 SIGNATURE WORD AND PROGRAMMING VOLTAGES
The 87C196CB’s programming voltages are the same of those of the 8XC196NT; however, the
signature word differs. Table 10-1 lists the signature word and programming voltages.
signature word differs. Table 10-1 lists the signature word and programming voltages.
10.2 MEMORY MAP FOR SLAVE PROGRAMMING MODE
Because the 87C196CB has an additional 24 Kbytes of OTPROM, its memory map (Table 10-2)
differs from that of the 8XC196NT. The remaining information on slave programming is correct
for the 87C196CB.
differs from that of the 8XC196NT. The remaining information on slave programming is correct
for the 87C196CB.
Table 10-1. Signature Word and Programming Voltages
Device
Signature Word
Programming V
CC
Programming
V
PP
Location
Value
Location
Value
Location
Value
87C196CB
0070H
87CBH
0072H
40H
0073H
0A0H