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参数资料
| 型号： | M34508G4HFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | 5.30 X12.60 MM, 1.27 MM PITCH, PLASTIC, SOP-20 |
| 文件页数： | 9/32页 |
| 文件大小： | 1049K |
| 代理商： | M34508G4HFP |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
4508 Group
Rev.1.03
2009.07.27
page 17 of 140
REJ03B0148-0103
PROGRAM MEMOY (ROM)
1 word of program memory is composed of 10 bits. ROM is sepa-
rated every 128 words by the unit of page (addresses 0 to 127).
Table 1 shows the ROM size and pages. Figure 10 shows the ROM
map of M34508G4.
Table 1 ROM size and pages
Part number
M34508G4
M34508G4H
ROM (PROM) size
( 10 bits)
4096 words
Pages
32 (0 to 31)
A part of page 1 (addresses 008016 to 00FF16) is reserved for inter-
rupt addresses (Figure 11). When an interrupt occurs, the address
(interrupt address) corresponding to each interrupt is set in the pro-
gram counter, and the instruction at the interrupt address is
executed. When using an interrupt service routine, write the instruc-
tion generating the branch to that routine at an interrupt address.
Page 2 (addresses 010016 to 017F16) is the special page for subrou-
tine 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 instruction
when it starts on page 2.
ROM pattern (bits 7 to 0) of all addresses can be used as data areas
with the TABP p instruction.
ROM Code Protect Address
When selecting the protect bit write by using a serial programmer or
selecting protect enabled for writing shipment by Renesas Technol-
ogy corp., reading or writing from/to QzROM is disabled by a serial
programmer.
As for the QzROM product in blank, the ROM code is protected by
selecting the protect bit write at ROM writing with a serial pro-
grammer.
As for the QzROM product shipped after writing, whether the ROM
code protect is used or not can be selected as ROM option setup
(“MASK option” written in the mask file converter) when ordering.
Fig. 10 ROM map of M34508G4
Fig. 11 Page 1 (addresses 008016 to 00FF16) structure
0
876
543
21
000016
008016
017F16
Subroutine special page
007F16
00FF16
010016
018016
Page 1
Page 2
Page 0
Page 3
Page 31
0FFF16
Interrupt address page
9
90
8765
4321
External 0 interrupt address
008016
008216
Timer 1 interrupt address
008416
Timer 2 interrupt address
008616
008816
008A16
00FF16
A/D interrupt address
008C16
008E16 Serial interface interrupt address
相关PDF资料 |
PDF描述 |
|---|---|
| M34508G4GP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| M34508G4H-XXXFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| M34508G4-XXXFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| M34508G4FP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
| M34508G4-XXXGP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M34508G4HGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4H-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4H-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34508G4-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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