Addendum to section 13: timed-access protection, Addendum to section 14: real-time clock, Addendum to section 15: battery backup – Maxim Integrated High-Speed Microcontroller Users Guide: Network Microcontroller Supplement User Manual

Page 129

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High-Speed Microcontroller User’s

Guide: Network Microcontroller

Supplement

129

ADDENDUM TO SECTION 13: TIMED-ACCESS PROTECTION

A number of timed-access-protected bits are associated with the new features of the DS80C400. Please consult the High-Speed

Microcontroller User’s Guide for complete information on the use of the timed-access feature.

SFR

BIT(S)

BIT NAME

FUNCTION

EXIF (91h)

EXIF.0

BGS

Bandgap select

P4CNT (92h)

P4CNT.5–0

Port 4 pin configuration control bits

ACON (9Dh)

ACON.5

MROM

Merge ROM assignment

ACON.4

BPME

Breakpoint mode enable

ACON.3

BROM

Bypass ROM

ACON.2

SA

Stack address mode

ACON.1-0

AM1-AM0

Address mode-select bits

P5CNT (A2h)

P5CNT.2-0

Port 5 pin configuration control bits

C0C (A3h)

C0C.3

CRST

CAN 0 reset

P6CNT (B2h)

P6CNT.5–0

Port 6 pin configuration control bits

MCON (C6h)

MCON.7-6

IDM1-IDM0

Internal memory configuration bits

MCON.5

CMA

CAN data memory assignment

MCON.3–0

PDCE3–PDCE0

Program/data chip enables

COR (CEh)

COR.7

IRDACK

IRDA clock output enable

COR.4-3

C0BPR7-C0BPR6

CAN 0 baud-rate prescale bits

COR.2-1

COD1-COD0

CAN clock output divide bits

COR.0

CLKOE

CAN clock output enable

MCON1 (D6h)

MCON1.3–0

PDCE7–PDCE4

Program/data chip enable

MCON2 (D7h)

MCON2.6-4

WPR2-WPR0

Write-protect range bits

MCON2.3–0

WPE3–WPE0

Write-protect enable bits

WDCON (D8h)

WDCON.6

POR

Power-on reset flag

WDCON.3

WDIF

Watchdog interrupt flag

WDCON.1

EWT

Watchdog reset enable

WDCON.0

RWT

Reset watchdog timer

EBS (E5h)

EBS.7

FPE

Flush filter failed-packet enable

EBS.4–0

BS4–BS0

Buffer size configuration bits

ADDENDUM TO SECTION 14: REAL-TIME CLOCK

No changes. Not applicable to the network microcontroller.

ADDENDUM TO SECTION 15: BATTERY BACKUP

No changes. Not applicable to the network microcontroller.

Maxim Integrated

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