M37640E8 View Datasheet(PDF) - MITSUBISHI ELECTRIC

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M37640E8

Single-Chip 8-BIT CMOS Microcontroller M37640E8-XXXFP Specification

MITSUBISHI ELECTRIC  

Mitsubishi Microcomputer

7600 Series

M37640E8-XXXF Preliminary Specification

MSB

7

LS

CHG1 CHG0

FSE

VCO1,0

FIN

Bit 4

CHG1,0

LS

Reserved FIN

VCO1

VCO0

FSE

LSB

0

Frequency Synthesizer Enable Bit (bit 0)

0: Disabled

1: Enabled

VCO Gain Control (bits 2,1)

Bit 2

Bit 1

0

0: Lowest Gain (recommended)

0

1: Low Gain

1

0: High Gain

1

1: Highest Gain

Frequency Synthesizer input selector Bit (bit 3)

0: Xin

1: XCin

Reserved (Read/Write “0”)

LPF Current Control (bits 6,5)

Bit 6

Bit 5

0

0: Disabled

0

1: Low Current

1

0: Intermediate Current (recommended)

1

1: High Current

Frequency Synthesizer Lock Status Bit (bit 7) (Read Only; Write “0”)

0: Unlocked

1: Locked

Address: 006C16

Access: R/W

Reset: 6016

Figure 2-12. Frequency Synthesizer Control Register

Oscillator Circuit

7/9/98

2-13

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