Z8F042ASJ020EG View Datasheet(PDF) - Zilog

Part Name

Description

MFG CO.

Z8F042ASJ020EG

High-Performance 8-Bit Microcontrollers Z8 Encore! XP® F082A Series

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Z8 Encore! XP® F082A Series

Product Specification

166

Trim Bit Address 0002H

Table 92. Trim Option Bits at 0002H (TIPO)

Bit

7

6

5

4

3

2

1

0

Field

IPO_TRIM

RESET

U

R/W

R/W

Address

Information Page Memory 0022H

Note: U = Unchanged by Reset. R/W = Read/Write.

Bit

[7:0]

IPO_TRIM

Description

Internal Precision Oscillator Trim Byte

Contains trimming bits for the Internal Precision Oscillator.

Trim Bit Address 0003H

Note: The LVD is available on 8-pin devices only.

Table 93. Trim Option Bits at Address 0003H (TLVD)

Bit

7

6

5

4

3

2

Field

Reserved

LVD_TRIM

RESET

U

U

U

U

U

U

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Address

Information Page Memory 0023H

Note: U = Unchanged by Reset. R/W = Read/Write.

1

U

R/W

0

U

R/W

Bit

[7:5]

[4:0]

LVD_TRIM

Description

Reserved

These bits are reserved and must be programmed to 111.

Low Voltage Detect Trim m

This trimming affects the low voltage detection threshold. Each LSB represents a 50 mV

change in the threshold level. Alternatively, the low voltage threshold may be computed from

the options bit value by the following equation:

LVD_LVL = 3.6 V – LVD_TRIM  0.05 V

These values are tabulated in Table 94.

PS022827-1212

PRELIMINARY

Trim Bit Address Space

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