PSD501B1 datasheet(63/153 Pages) STMICROELECTRONICS

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PSD5XX Family

APD EN Bit

ALE Power

ALE Status

APD Counter

Down Polarity

Not Counting

Pulsing

Not Counting

Counting (Activates Standby

Mode After 15 Clocks)

Counting (Activates Standby

Mode After 15 Clocks)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

TMR CLK

ZPLD

APD

ALE PD

RCLK

ACLK

TURBO

CMISER

ENABLE

Polarity

1 = OFF

1 = ON

1 = HIGH

PMMR0

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Sleep

APD CLK

Mode

1 = ON

1 = CLKIN

PMMR1

Table 17. Power Management Mode Registers (PMMR0, PMMR1)

Table 18. APD Counter Operation

Power

Management

Unit

(Cont.)

Bit 0 * = Should be set to High (1) to operate the APD.

Bit 1 0 = ALE Power Down (PD) Polarity Low.

1 = ALE Power Down (PD) Polarity High.

Bit 2 0 = Automatic Power Down (APD) Disable.

1 = Automatic Power Down (APD) Enable.

Bit 3 0 = EPROM/SRAM CMiser is OFF.

1 = EPROM/SRAM CMiser is ON.

Bit 4 0 = ZPLD Turbo is ON. ZPLD is always ON.

1 = ZPLD Turbo is OFF. ZPLD will Power Down when inputs are not changing.

Bit 5 0 = ZPLD Clock Input into the Array from the CLKIN pin input is connected. Every

Clock change will Power Up the ZPLD when Turbo bit is OFF.

1 = ZPLD Clock Input into the Array from the CLKIN pin input is disconnected.

Bit 6 0 = ZPLD Clock Input into the the MacroCell registers from the CLKIN pin input

is connected.

1 = ZPLD Clock Input into the the MacroCell registers from the CLKIN pin input

is disconnected.

Bit 7 0 = In the PSD5XX Clock Input is connected to the Timer.

1 = In the PSD5XX Clock Input is disconnected from the Timer.

Bit 0

0 = Automatic Power Down Unit Clock is connected to Port E7 (PE7) alternate

function input.

1 = Automatic Power Down Unit Clock is connected to the PSD Clock

input (CLKIN).

Bit 1

0 = Sleep Mode Disabled.

1 = Sleep Mode Enabled.

Bit 2–7 0 = Reserved for future use, should be set to zero.

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