4513 datasheet(33/210 Pages) RENESAS

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HARDWARE

4513/4514 Group User’s Manual

FUNCTION BLOCK OPERATIONS

PROGRAM MEMOY (ROM)

The program memory is a mask ROM. 1 word of ROM is composed

of 10 bits. ROM is separated every 128 words by the unit of page

(addresses 0 to 127). Table 1 shows the ROM size and pages. Fig-

ure 10 shows the ROM map of M34514M8/E8.

Table 1 ROM size and pages

Product

M34513M2

M34513M4/E4

M34513M6

M34513M8/E8

M34514M6

M34514M8/E8

ROM size

(! 10 bits)

2048 words

4096 words

6144 words

8192 words

6144 words

8192 words

Pages

16 (0 to 15)

32 (0 to 31)

48 (0 to 47)

64 (0 to 63)

48 (0 to 47)

64 (0 to 63)

A part of page 1 (addresses 008016 to 00FF16) is reserved for in-

terrupt addresses (Figure 11). When an interrupt occurs, the

address (interrupt address) corresponding to each interrupt is set

in the program counter, and the instruction at the interrupt address

is executed. When using an interrupt service routine, write the in-

struction generating the branch to that routine at an interrupt

address.

Page 2 (addresses 010016 to 017F16) is the special page for sub-

routine calls. Subroutines written in this page can be called from

any page with the 1-word instruction (BM). Subroutines extending

from page 2 to another page can also be called with the BM in-

struction when it starts on page 2.

ROM pattern (bits 7 to 0) of all addresses can be used as data ar-

eas with the TABP p instruction.

Fig. 10 ROM map of M34514M8/E8

Fig. 11 Page 1 (addresses 008016 to 00FF16) structure

8765

4321

External 0 interrupt address

External 1 interrupt address

008016

008216

Timer 1 interrupt address

008416

Timer 2 interrupt address

008616

Timer 3 interrupt address

008816

008A16

00FF16

Timer 4 interrupt address

A-D interrupt address

Serial I/O interrupt address

008C16

008E16

876

54321

000016

008016

017F16

Subroutine special page

007F16

00FF16

010016

1FFF16

018016

Page 1

Page 2

Page 0

Page 3

Page 31

0FFF16

Interrupt address page

Page 63

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