Pld resource access, Pld memory map table – Connect Tech BLUE HEAT/NET SYNC CTIM-00044 User Manual

Page 51

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Connect Tech Blue Heat/Net Sync User Manual

Revision 0.03

51

A[5..1]

Addresses IUSC registers (see Memory Map Table below).


A[0] Not used explicitly, A0 (along with BS0# and BS1#) select byte size portions of IUSC
registers.

PLD Resource Access:

A[12] Must be one (1).

A[11..5]

Are not used.


A[4..2]

Are decoded into selections of internal PLD “registers”.

A4

A3

A2

Function

Notes

0

0

0

Real Time Clock

32 bit read/write (16 bit portions
also accessible)

0

0

1

LED Control

16 bit read/write only

0

1

0

Port-1 Line I/F control

16 bit read/write only

0

1

1

Port-2 Line I/F control

16 bit read/write only

1

0

0

Port-3 Line I/F control

16 bit read/write only

1

0

1

Port-4 Line I/F control

16 bit read/write only

1

1

0

Control

16 bit read/write only

1

1

1

Status

16 bit read only

A[1] Is used to select the 16 bit portions of the Real Time Clock register.

A[0] Is not used.

PLD Memory Map Table

Address

Offset

(in hex)

Area (item)

Accessed

Register

Accessed

Notes

IUSC Area

IUSC-0

000

IUSC-0 Sreg [1]

CCAR

002

IUSC-0 Sreg

CMR

004

IUSC-0 Sreg

CCSR

006

IUSC-0 Sreg

CCR

008

IUSC-0 Sreg

PSR

00A

IUSC-0 Sreg

PCR

00C

IUSC-0 Sreg

TMDR

00E

IUSC-0 Sreg

TMCR

010

IUSC-0 Sreg

CMCR

012

IUSC-0 Sreg

HCR

014

IUSC-0 Sreg

IVR

016

IUSC-0 Sreg

IOCR

018

IUSC-0 Sreg

ICR

01A

IUSC-0 Sreg

DCCR

01C

IUSC-0 Sreg

MISR

01E

IUSC-0 Sreg

SICR

020

IUSC-0 Sreg

RDR(TDR) 8/16 bit Serial Data (byte/word)

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