 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
W77C32 Datasheet(PDF) 10 Page - Winbond |
|
||||||||||||||||||||||||||||||
W77C32 Datasheet(HTML) 10 Page - Winbond |
|
|
10 / 78 page  W77C32/W77C032A - 10 - 7. SPECIAL FUNCTION REGISTERS The W77C032 uses Special Function Registers (SFRs) to control and monitor peripherals and their Modes. The SFRs reside in the register locations 80-FFh and are accessed by direct addressing only. Some of the SFRs are bit addressable. This is very useful in cases where one wishes to modify a particular bit without changing the others. The SFRs that are bit addressable are those whose addresses end in 0 or 8. The W77C032 contains all the SFRs present in the standard 8052. However, some additional SFRs have been added. In some cases unused bits in the original 8052 have been given new functions. The list of SFRs is as follows. The table is condensed with eight locations per row. Empty locations indicate that there are no registers at these addresses. When a bit or register is not implemented, it will read high. Table 1. Special Function Register Location Table F8 EIP F0 B E8 EIE E0 ACC D8 WDCON D0 PSW C8 T2CON T2MOD RCAP2L RCAP2H TL2 TH2 C0 SCON1 SBUF1 ROMMAP PMR STATUS TA B8 IP SADEN SADEN1 B0 P3 A8 IE SADDR SADDR1 A0 P2 P4 98 SCON0 SBUF 90 P1 EXIF 88 TCON TMOD TL0 TL1 TH0 TH1 CKCON 80 P0 SP DPL DPH DPL1 DPH1 DPS PCON Note: The SFRs in the column with dark borders are bit-addressable. A brief description of the SFRs now follows. Port 0 Bit: 7 6 5 4 3 2 1 0 P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 P0.0 Mnemonic: P0 Address: 80h Port 0 is an open-drain bi-directional I/O port. This port also provides a multiplexed low order address/data bus during accesses to external memory. |
Similar Part No. - W77C32_07 |
|
Similar Description - W77C32_07 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
