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參數(shù)資料
| 型號： | UPD753012AGC |
| 廠商： | NEC Corp. |
| 元件分類： | 4位微控制器 |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 4位單片機的小型通用紅外遙控器 |
| 文件頁數(shù)： | 16/88頁 |
| 文件大小： | 438K |
| 代理商： | UPD753012AGC |
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16
μ
PD753012A, 753016A, 753017A
Data Sheet U11662EJ2V0DS00
4. SWITCHING FUNCTION BETWEEN Mk I MODE AND Mk II MODE
4.1 Differences between Mk I Mode and Mk II Mode
The CPU of
μ
PD753017A has the following two modes: Mk I and Mk II, either of which can be selected. The
mode can be switched by the bit 3 of the stack bank select register (SBS).
Mk I mode:
Upward compatible with
μ
PD75316B.
Can be used in the 75XL CPU with a ROM capacity of up to 16K bytes.
Incompatible with
μ
PD75316B.
Can be used in all the 75XL CPU’s including those products whose ROM capacity is more
than 16K bytes.
Mk II mode:
Table 4-1. Differences between Mk I Mode and Mk II Mode
Mk I Mode
Mk II Mode
Program memory (bytes)
μ
PD753012A : 12288
μ
PD753016A, 753017A : 16384
μ
PD753012A : 12288
μ
PD753016A : 16384
μ
PD753017A : 24576
Number of stack bytes
for subroutine instructions
2 bytes
3 bytes
BRA !addr1 instruction
CALLA !addr1 instruction
Not available
Available
CALL !addr instruction
3 machine cycles
4 machine cycles
CALLF !faddr instruction
2 machine cycles
3 machine cycles
Caution The Mk II mode supports a program area exceeding 16 Kbytes for the 75X and
75XL series. Therefore, this mode is effective for enhancing software compatibility
with products exceeding 16 Kbytes.
When the Mk II mode is selected, the number of stack bytes used during
execution of subroutine call instructions increases by one byte per stack
compared to the Mk I mode. When the CALL !addr and CALLF !faddr instructions
are used, the machine cycle becomes longer by one machine cycle. Therefore,
use the Mk I mode if the RAM efficiency and processing performance are more
important than software compatibility.
相關PDF資料 |
PDF描述 |
|---|---|
| UPD753012AGK | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD753017A | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD753017AGC | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD753017AGK | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD753016AGC | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| UPD753012AGC-P33-8BT-A | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD753016AGC-P29-8BT | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD75304GF-407-3B9 | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD75306G182 | 制造商:Panasonic Industrial Company 功能描述:IC |
| UPD75308F478 | 制造商:Panasonic Industrial Company 功能描述:IC |
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