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參數(shù)資料
| 型號： | HD404326 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 4-bit HMCS400-series microcomputer(4位單片微計算機) |
| 中文描述： | 4位HMCS400系列微電腦（4位單片微計算機） |
| 文件頁數(shù)： | 41/94頁 |
| 文件大?。?/td> | 573K |
| 代理商： | HD404326 |
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HD404328 Series
41
D Port (D
0
–D
10
):
Consist of 9 input/output pins and 2 input pins. Pins D
0
–D
7
are high-current I/O pins, D
8
is an ordinary input/output pin, and D
9
and D
10
are input-only pins. These pins are set by the SED and
SEDD instructions, reset by the RED and REDD instructions, and tested by the TD and TDD instructions.
The operating modes of D
8
–D
10
are set by bits 2 and 3 of port mode register A (PMRA) and bits 0 and 1 of
port mode register B (PMRB), as shown in figure 24. The on/off status of the output buffer is controlled by
D port data control registers (DCRB, DCRC, and DCRD) that are mapped to memory addresses.
R Ports:
Accessed in 4-bit units. Data is input to these ports by the LAR and LBR instructions and output
from them by the LRA and LRB instructions. The on/off status of the output buffers of the R ports are
controlled by R port data control registers (DCR0–DCR5) that are mapped to memory addresses.
Pins R1
0
–R1
3
are multiplexed with pins
SCK
, SI, SO, and BUZZ, respectively. The operating modes of
these pins are controlled by bit 3 of the serial mode register (SMR), bits 1 and 0 of port mode register A
(PMRA), and bit 2 of port mode register C (PMRC), as shown in figure 24.
Ports R2–R5 are multiplexed with SEG1–SEG16. The functions of these pins must be specified by the
LCD output register (LOR: $015).
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相關代理商/技術參數(shù) |
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|---|---|
| HD404326FS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404326H | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404326S | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404326U | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
| HD404326UFS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity |
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