psd813f1a-90ut STMicroelectronics, psd813f1a-90ut Datasheet - Page 59

• Manufacturer Part Number: psd813f1a-90ut
• Description: Flash In-system Programmable Isp Peripherals For 8-bit Mcus
• Manufacturer: STMicroelectronics

58
PSD913F1
The
PSD913F1
Functional
Blocks
(cont.)
Figure 25. APD Logic Block
Figure 26. Enable Power Down Flow Chart
APD EN
PMMR0 BIT 1=1
ALE
RESET
CSI
CLKIN
DISABLE
FLASH/EEPROM/SRAM
TRANSITION
DETECTION
DETECT
EDGE
No
Disable desired inputs to PLD
and PMMR2 bits 2 through 6.
by setting PMMR0 bits 4
Set PMMR0 Bit 1 = 1
PSD in Power
OPTIONAL
for 15 CLKIN
Enable APD
ALE/AS idle
Down Mode
clocks?
RESET
CLR
COUNTER
APD
Yes
PD
PD
DISABLE BUS
INTERFACE
PLD
EEPROM SELECT
FLASH SELECT
SRAM SELECT
POWER DOWN
( PDN )
SELECT
Preliminary