Specifications

78 SAM0023-122898 ESS Technology, Inc.
ES1869 DATA SHEET
POWER MANAGEMENT
Bits Definitions:
Bits Name Description
7 Delay
GPO1
state
return
enable
1 = Delay GPO1’s return to its normal state as
determined by port Audio_Base+7h bit 1. The
time delay is determined by bits 2:0, described
below.
0 = Return GPO1 to its normal state immedi-
ately upon wake-up from full power-down.
6 GPO1
invert
enable
1 = Invert bit 1 of Audio_Base+7h when enter-
ing the full power-down state.
5 Delay
GPO0
state
return
enable
1 = Delay GPO0’s return to its normal state as
determined by port Audio_Base+7h bit 0. The
time delay is determined by bits 2:0, described
below.
0 = Return GPO0 to its normal state immedi-
ately upon wake-up from full power-down.
4 GPO1
invert
enable
1 = Invert bit 0 of Audio_Base+7h when enter-
ing the full power-down state.
3 – Reserved. Always write 0.
2:0 Time
delay
The time period is determined by bits [2:0]: A
16 Hz counter starts at 0 and counts until it
equals the 3-bit number “time delay”. The max-
imum delay is (Time delay = 7) times (67
msec) or about 469 msec.