W83791SD Information Storage Devices, Inc, W83791SD Datasheet - Page 10

• Manufacturer Part Number: W83791SD
• Description: Programmable Speech Synthesizer With 133 Int/ext Event Triggers
• Manufacturer: Information Storage Devices, Inc

Power on default: 00h
Program procedure:
1. Set Flash address (3-bytes)
2. Set Flash Data (4-bytes)
3. Set Flash control “Program mode”
4. Set program command active (PROG_ACTIVE)
Erase 4K:
1. Set Flash Address (must be 4K address boundary)
2. Set Flash control register
7.3 Event Trigger Timeout Register  Index 08h (Bank 0)
Power on default: 00h
7
6:4
3:0
7:0
BIT
BIT
PROG_ACTIVE
TRIG_TIME
PROGMODE
Reserved
NAME
NAME
ATTRIBUTE
ATTRIBUT
R/W
R/W
R/W
E
Event Trigger Timeout Timer Setting. When software or
firmware write trigger event, that don’t write to speech queue
until this register is timeout. This unit is Second. Default is 00,
that is, the software event doesn’t need to wait then write to
sound event queue. Note that, this function is controlled by
Speech Input Property (Index 0Ah).
Program Active Command. If set this bit to 1, the serial
flash will be active according the Flash Program Mode.
Reading this bit, the bit will return a Serial Flash Busy
(SER_BUSY). And this is pulse, if read this bit show “0”
Reserved.
Flash Program Mode
FLASHCTRL[3:0]
- 7 -
0000b
0001b
0010b
0011b
0100b
0101b
0110b
0111b
Publication Release Date: January 18, 2005
W83791SD/W83791SG
DESCRIPTION
DESCRIPTION
No action
Program mode
Erase all
Page code
Erase 4K bytes
Erase 16K bytes
Page code read out
Read flash data
Revision 1.1