EM73P461A Просмотр технического описания (PDF) - ELAN Microelectronics

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EM73P461A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

ELAN Microelectronics 

EM73P461A

4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

Preliminary

PROGRAM EXAMPLE: Read out the ROM code of address 1777h by table-look-up instruction for 8K ROM.

LDIA #07h;

STADPL ; DP3-0 ← 07h

STADPM ; DP5-4 ← 07h

STADPH ; DP8-6 ← 07h, Load DP=1777h

:

LDL #00h;

LDH #03h;

LDAX

; ACC ← 6h

STAMI ; RAM[30] ← 6h

LDAXI ; ACC ← 5h

STAM

; RAM[31] ← 5h

:

BANK 1

ORG 1777h

DATA 56h;

:

DATA RAM ( 244-nibble )

There is total 244 - nibble data RAM from address 00 to F3h

Data RAM includes 3 parts: zero page region, stacks and data area.

Increment

Address

00h~0Fh

10h~1Fh

20h~2Fh

30h~3Fh

40h~4Fh

:

B0h ~ BFh

C0h ~ CFh level 0

D0h ~ DFh level 4

E0h ~ EFh level 8

F0h ~ F3h level C

zero page

LCD display RAM

level 1

level 5

level 9

level 2

level 6

level A

level 3

level17

level B

* This specification are subject to be changed without notice.

12.27.2001 7

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