Electronic Components Datasheet Search |
|
W83877 Datasheet(PDF) 100 Page - Winbond |
|
W83877 Datasheet(HTML) 100 Page - Winbond |
100 / 125 page W83877F - 100 - 8.2.32 Configuration Register 27 (CR27) When the device is in Extended Function mode and EFIR is 27, the CR27 register can be accessed through EFDR. Default = 05H if CR6 bit 2 = 1; default = 00H if CR16 bit 2 = 0. The bit definitions are as follows: 1 2 3 4 5 6 7 0 PRTIQS0 PRTIQS1 PRTIQS2 PRTIQS3 Reserved ECPIRQx0 ECPIRQx1 ECPIRQx2 ECPIRQx2-ECPIRQx0 (bit7-bit 5): These bits are configurable equivalents to bit[5:3] of cnfgB register in ECP mode except that cnfgB[5:3] are read-only bits. They indicate the IRQ resource assigned for the ECP printer port. It is the software designer's responsibility to ensure that CR27[7:5] and CR27[3:0] are consistent. For example, CR27[7:5] should be filled with 001 (select IRQ 7) if CR27[3:0] are to be programmed as 0101 (select IRQ_E) while IRQ_E is connected to IRQ 7. CR27[7:5] IRQ resource 000 reflect other IRQ resources selected by CR27[3:0] (default) 001 IRQ 7 010 IRQ 9 011 IRQ 10 100 IRQ 11 101 IRQ 14 110 IRQ 15 111 IRQ 5 Bit 4: Reserved. PRTIQS3-PRTIQS0 (bit 3-bit 0): Select IRQ resource for the parallel port. Any unselected IRQ is in tristate. CR27[3:0] IRQ selected 0000 None 0001 IRQ_A 0010 IRQ_B 0011 IRQ_C 0100 IRQ_D 0101 IRQ_E 0110 IRQ_F 0111 IRQ_G 1000 IRQ_H |
Similar Part No. - W83877 |
|
Similar Description - W83877 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |