Pm49FL002 / 004
PMC
LPC BLOCK ERASE WAVEFORMS
CLK
RST# or INIT#
LFRAME#
Memory
Write
Address
11xxb
Data
1010b
TAR
Sync
TAR
1st Start
0000b
Cycle
0101b
1010b
0101b
1010b
1111b
2
0000b
1111b
011Xb
1111b
0101b
Clocks
0101b
0101b
Tri-State
Clocks
Tri-State
1111b
1111b
LAD[3:0]
CLK
1
Clock
2
Clocks
Device to Host
Load "AAh" in
2
Clocks
1
Clock
1
1
1
Clock
Load "5555h" in
8
8
8
Host to Device
RST# or INIT#
LFRAME#
Memory
Write
Cycle
Address
11xxb
Load "2AAAh" in
Data
0101b
TAR
Sync
TAR
1111b
Tri-State
Clocks
2nd Start
0000b
1111b
1111b
1010b
0101b
011Xb
Clock
1111b
0010b
Clocks
1010b
1111b
2
0000b
Tri-State
Clocks
LAD[3:0]
CLK
1
Clock
2
Load "55h" in
2
Clocks
1
Clock
Host to Device
Device to Host
RST# or INIT#
LFRAME#
LAD[3:0]
Memory
Write
Cycle
Address
11xxb
Load "5555h" in
Data
0000b
TAR
Tri-State
Clocks
Sync
TAR
3rd Start
0000b
1111b
1111b
1000b
1111b
2
0000b
1111b
Tri-State
011Xb
Clock
1111b
0101b
Clocks
0101b
0101b
1
Clock
2
Clocks
Device to Host
Load "80h" in
2
Clocks
1
Clock
Host to Device
CLK
RST# or INIT#
LFRAME#
Memory
Write
Address
11xxb
0101b
Load "5555" in 8 Clocks
Data
0101b
TAR
Sync
TAR
4th Start
0000b
Cycle
0101b
1111b
1111b
1111b
1111b
1111b
1111b
0101b
0101b
1010b
Tri-State
Clocks
011Xb
Clock
1111b
1111b
2
0000b
1111b
Tri-State
Clocks
LAD[3:0]
1
Clock
2
Load "AAh" in
2
Clocks
1
Clock
1
1
1
Host to Device
Device to Host
CLK
RST# or INIT#
LFRAME#
Memory
Write
Cycle
Address
11xxb
Load "2AAAh" in 8
Data
0101b
TAR
Tri-State
Clocks
Sync
TAR
5th Start
0000b
011Xb
Clock
1111b
0010b
Clocks
1010b
1010b
1010b
0101b
1111b
2
0000b
1111b
Tri-State
LAD[3:0]
CLK
1
Clock
2
Clocks
Device to Host
Load "55h" in
2
Clocks
1
Clock
Host to Device
RST# or INIT#
LFRAME#
Memory
Write
Cycle
Internal Erase
Start
Address
BA[19:16]
Data
0000b
TAR
Sync
TAR
6th Start
0000b
BA[15:14]
xxxxb
xxxxb
xxxxb
0101b
Tri-State
Clocks
011Xb
Clock
1111b
Load Block Address in
BA
1111b
2
0000b
1111b
Tri-State
Clocks
LAD[3:0]
+
xxb
1
Clock
2
Load "50h" in
2 Clocks
1
Clock
8
Clocks
Host to Device
Device to Host
=
Block Address
Issue Date: December, 2003 Rev: 1.4
Programmable Microelectronics Corp.
21
PMC [ PMC-SIERRA, INC ]
