SC73C1602MC-XXXGTR 데이터 시트보기 (PDF) - Silan Microelectronics

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SC73C1602MC-XXXGTR

4-BIT MCU FOR REMOTE CONTROLLER(MASK TYPE)

Silan Microelectronics 

6. CH0, CH1, CL0, CL1

CH0, CH1, CL0 and CL1 are carrier level control registers for controlling the high and low level to ˄CHˇ1˅

/fosc and˄CLˇ1˅/fosc.

7. LL, LH

LL register, 4 bits, LH register, 1 bit. LH[0]LL[3:0] is the address pointer of RAM.

8. RAM

Data memory consists of 32x4 bits and is used to store temporary data and results after a program is executed. It

can address the entire RAM areas by the pointer LH[0]LL[3:0]. When reset, the contents of RAM are not defined.

We recommend users to initialize it at the beginning of their software program.

9. ALU

The arithmetic and logic unit plays a leading role in performing various operations of 4-bit binaries. The operation

of ALU will change the carry flag (CF) and the zero flag (ZF).

10.Acc

4-bit accumulator, it is mostly used to store data and results.

11.CF

Carry flag.

12.SF

Status flag bit, the value of SF is 1 after reset.

13.PR (PR , PR2)

The port mode register, which specifies the input mode or output mode of the I/O port, is 4-bit write-only. When

PR=1, the corresponding port is set to output mode. PR=0, it is set to input mode. The execution of the HOLD

instruction won’t affect the I/O modes of operation. When reset, PR=0. The port is in input mode.

PR.3

PR.2

PR.1

PR.0

P0 mode select

P10, P11 mode select

P12, P13 mode select

P2 mode select

--

PR2.2

PR2.1

PR2.0

P50 mode select

P51 mode select

P52 mode select

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

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REV:2.5 2009.07.20

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