參數(shù)資料
型號(hào): HD40A4354S
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer
中文描述: 4位HMCS400系列微機(jī)
文件頁數(shù): 62/100頁
文件大小: 398K
代理商: HD40A4354S
HD404358 Series
62
Pin Setting:
The R0
0
/
SCK
pin is controlled by writing data to the serial mode register (SMR: $005). The
R0
1
/SI and R0
2
/SO pins are controlled by writing data to port mode register A (PMRA: $004). Refer to the
following Registers for Serial Interface section for details.
Transmit Clock Source Setting:
The transmit clock source is set by writing data to the serial mode
register (SMR: $005) and port mode register C (PMRC: $025). Refer to the following Registers for Serial
Interface section for details.
Data Setting:
Transmit data is set by writing data to the serial data register (SRL: $006, SRU, $007).
Receive data is obtained by reading the contents of the serial data register. The serial data is shifted by the
transmit clock and is input from or output to an external system.
The output level of the SO pin is invalid until the first data is output after MCU reset, or until the output
level control in idle states is performed.
Transfer Control:
The serial interface is activated by the STS instruction. The octal counter is reset to 000
by this instruction, and it increments at the rising edge of the transmit clock. When the eighth transmit
clock signal is input or when serial transmission/receive is discontinued, the octal counter is reset to 000,
the serial interrupt request flag (IFS: $003, bit 2) is set, and the transfer stops.
When the prescaler output is selected as the transmit clock, the transmit clock frequency is selected as 4t
cyc
to 8192t
cyc
by setting bits 0 to 2 (SMR0– SMR2) of serial mode register (SMR: $005) and bit 0 (PMRC0)
of port mode register C (PMRC: $025) as listed in table 28.
Table 28
Serial Transmit Clock (Prescaler Output)
PMRC
SMR
Bit 0
Bit 2
Bit 1
Bit 0
Prescaler Division Ratio
Transmit Clock Frequency
0
0
0
0
÷
2048
÷
512
÷
128
÷
32
÷
8
÷
2
÷
4096
÷
1024
÷
256
÷
64
÷
16
÷
4
4096t
cyc
1024t
cyc
256t
cyc
64t
cyc
16t
cyc
4t
cyc
8192t
cyc
2048t
cyc
512t
cyc
128t
cyc
32t
cyc
8t
cyc
1
1
0
1
1
0
0
1
1
0
0
0
1
1
0
1
1
0
0
1
相關(guān)PDF資料
PDF描述
HD40A4356 4-bit HMCS400-Series microcomputer
HD40A4356H 4-bit HMCS400-Series microcomputer
HD40A4356S 66 POS MOLDED PGA SOCKET
HD40A4358H 4-bit HMCS400-Series microcomputer
HD40A4358S 4-bit HMCS400-Series microcomputer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD40A4356 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer has an A/D converter,
HD40A4356H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer
HD40A4356R 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HMCS43XXFamily User's Manual/Device
HD40A4356S 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-bit HMCS400-Series microcomputer
HD40A4358 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer has an A/D converter,