SM59264IHHK SYNCMOS [SyncMOS Technologies,Inc], SM59264IHHK Datasheet - Page 15

• Manufacturer Part Number: SM59264IHHK
• Description: 8 - Bit Micro-controller with 128KB flash & 1KB RAM embedded
• Manufacturer: SYNCMOS [SyncMOS Technologies,Inc]

Specifications subject to change without notice,contact your sales representatives for the most recent information.
ISP Registers - Flash Data Register (ISPFD, $F6)
The ISPFD provide the 8-bit data for ISP function
ISP Registers - Flash Control Register (ISPC, $F7)
ISPF[1:0] : ISP function select bit
START : ISP function start bit
FAU0 : 64K program Flash or 64K Data Flash select bit
Note: The START bit is read-only by default, software must write three specific values 55H, AAH and 55H sequentially to
Any attempt to set START bit will not be allowed without the procedure above.
After START bit set to 1 then the SM59264 hardware circuit will latch flash address and data bus and hold the program
counter until the START bit reset to 0 when ISP function finished. The program counter (PC) will point to next instruction
after START bit reset to 0. User does not need to check START bit status by software method.
FD7 ~FD0 : flash data for ISP function
ISPF [1:0]
Read:
Write :
Reset value :
Read :
Write :
Reset value :
the ISPFD register to enable the START bit write attribute. That is :
00
01
10
11
MOV ISPFD, #55H
MOV ISPFD, #AAH
MOV ISPFD, #55H
= 1 : start ISP function which indicated by bit 1, bit 0 (ISPF1, ISPF0)
= 0 : no operation
= 1 : selected 64K data flash
= 0 : selected 64K program flash
SyncMOS Technologies Inc.
May 2002
START
Byte program
Chip protect
Page erase (512Byte)
Chip erase
bit-7
FD7
bit-7
ISP function
0
0
Unused
FD6
0
0
FAU0
FD5
0
0
Unused
FD4
0
0
15/32
Unused
FD3
0
0
Unused
FD2
0
0
ISPF1
FD1
0
0
Ver 1.0
ISPF0
bit-0
bit-0
FD0
PID 59264 05/02
SM59264
0
0