C51: Support for the Nuvoton(Winbond) W77C32

Information in this article applies to:

• C51 Version 5.50 and later

QUESTION

Is the Nuvoton (Formerly Winbond) W77C32 device supported? Where can I get a header file?

ANSWER

Yes. This device is 8051 compatible and has an 8051 instruction set so it is supported by our compiler. The header file is listed below.

W77C32.H

/*--------------------------------------------------------------------------
W77C32.H - preliminary release

Header file for Winbond microcontroller W77C32
Based on the Preliminary Release form March 1999

Copyright (c) 1988-1999 Keil Elektronik GmbH and Keil Software, Inc.
All rights reserved.
--------------------------------------------------------------------------*/

/*  BYTE Registers  */
sfr P0     = 0x80;
sfr P1     = 0x90;
sfr P2     = 0xA0;
sfr P3     = 0xB0;
sfr P4     = 0xA5;
sfr PSW    = 0xD0;
sfr ACC    = 0xE0;
sfr B      = 0xF0;
sfr SP     = 0x81;
sfr DPL    = 0x82;
sfr DPH    = 0x83;
sfr PCON   = 0x87;
sfr TCON   = 0x88;
sfr TMOD   = 0x89;
sfr TL0    = 0x8A;
sfr TL1    = 0x8B;
sfr TH0    = 0x8C;
sfr TH1    = 0x8D;
sfr IE     = 0xA8;
sfr IP     = 0xB8;
sfr SCON   = 0x98;
sfr SBUF   = 0x99;
sfr T2CON  = 0xC8;
sfr T2MOD  = 0xC9;
sfr RCAP2L = 0xCA;
sfr RCAP2H = 0xCB;
sfr TL2    = 0xCC;
sfr TH2    = 0xCD;

/* W77C32 extensions */
sfr DPS    = 0x86;
sfr CKCON  = 0x8E;
sfr EXIF   = 0x91;
sfr SADDR  = 0xA9;
sfr SADDR1 = 0xAA;
sfr SADEN  = 0xB9;
sfr SADEN1 = 0xBA;
sfr SCON1  = 0xC0;
sfr SBUF1  = 0xC1;
sfr ROMMAP = 0xC2;
sfr PMR    = 0xC4;
sfr STATUS = 0xC5;
sfr TA     = 0xC7;
sfr WDCON  = 0xD8;
sfr EIE    = 0xE8;
sfr EIP    = 0xF8;

/*  BIT Registers  */
/*  P0  */
sbit P0_7  = P0^7;
sbit P0_6  = P1^6;
sbit P0_5  = P0^5;
sbit P0_4  = P1^4;
sbit P0_3  = P0^3;
sbit P0_2  = P1^2;
sbit P0_1  = P0^1;
sbit P0_0  = P1^0;

/*  TCON  */
sbit TF1   = TCON^7;
sbit TR1   = TCON^6;
sbit TF0   = TCON^5;
sbit TR0   = TCON^4;
sbit IE1   = TCON^3;
sbit IT1   = TCON^2;
sbit IE0   = TCON^1;
sbit IT0   = TCON^0;

/*  P1  */
sbit P1_7  = P1^7;
sbit P1_6  = P1^6;
sbit P1_5  = P1^5;
sbit P1_4  = P1^4;
sbit P1_3  = P1^3;
sbit P1_2  = P1^2;
sbit P1_1  = P1^1;
sbit P1_0  = P1^0;

/*  SCON  */
sbit SM0   = SCON^7;
sbit SM1   = SCON^6;
sbit SM2   = SCON^5;
sbit REN   = SCON^4;
sbit TB8   = SCON^3;
sbit RB8   = SCON^2;
sbit TI    = SCON^1;
sbit RI    = SCON^0;

/*  P2  */
sbit P2_7  = P2^7;
sbit P2_6  = P2^6;
sbit P2_5  = P2^5;
sbit P2_4  = P2^4;
sbit P2_3  = P2^3;
sbit P2_2  = P2^2;
sbit P2_1  = P2^1;
sbit P2_0  = P2^0;

/*  IE  */
sbit EA    = IE^7;
sbit ES1   = IE^6;
sbit ET2   = IE^5;
sbit ES    = IE^4;
sbit ET1   = IE^3;
sbit EX1   = IE^2;
sbit ET0   = IE^1;
sbit EX0   = IE^0;

/*  P3  */
sbit RD    = P3^7;
sbit WR    = P3^6;
sbit T1    = P3^5;
sbit T0    = P3^4;
sbit INT1  = P3^3;
sbit INT0  = P3^2;
sbit TXD   = P3^1;
sbit RXD   = P3^0;

/*  IP  */
sbit PS1   = IP^6;
sbit PT2   = IP^5;
sbit PS    = IP^4;
sbit PT1   = IP^3;
sbit PX1   = IP^2;
sbit PT0   = IP^1;
sbit PX0   = IP^0;

/*  SCON1  */
sbit SM0_1  = SCON1^7; // alternative FE_1
sbit SM1_1  = SCON1^6;
sbit SM2_1  = SCON1^5;
sbit REN_1  = SCON1^4;
sbit TB8_1  = SCON1^3;
sbit RB8_1  = SCON1^2;
sbit TI_1   = SCON1^1;
sbit RI_1   = SCON1^0;

/*  T2CON  */
sbit TF2    = T2CON^7;
sbit EXF2   = T2CON^6;
sbit RCLK   = T2CON^5;
sbit TCLK   = T2CON^4;
sbit EXEN2  = T2CON^3;
sbit TR2    = T2CON^2;
sbit C_T2   = T2CON^1;
sbit CP_RL2 = T2CON^0;

/*  PSW  */
sbit CY    = PSW^7;
sbit AC    = PSW^6;
sbit F0    = PSW^5;
sbit RS1   = PSW^4;
sbit RS0   = PSW^3;
sbit OV    = PSW^2;
sbit F1    = PSW^1;
sbit P     = PSW^0;

/* WDCON */
sbit SMOD_1 = WDCON^7;
sbit POR    = WDCON^6;
sbit WDIF   = WDCON^4;
sbit WTRF   = WDCON^3;
sbit EWT    = WDCON^1;
sbit RWT    = WDCON^0;

/* EIE */
sbit EWDI  = EIE^4;
sbit EX5   = EIE^3;
sbit EX4   = EIE^2;
sbit EX3   = EIE^1;
sbit EX2   = EIE^0;

/* EIP */
sbit PWDI  = EIP^4;
sbit PX5   = EIP^3;
sbit PX4   = EIP^2;
sbit PX3   = EIP^1;
sbit PX2   = EIP^0;

MORE INFORMATION

• Winbond 77C32

Last Reviewed: Thursday, February 25, 2021