a) ECP Mode:
i) (DMA) dmaEn from ecr register. See table.
ii) IRQ - See table.
MODE
IRQ PIN
PDREQ PIN
(FROM ECR REGISTER)
CONTROLLED BY
CONTROLLED BY
000
001
010
011
100
101
110
111
PRINTER
SPP
IRQE
IRQE
(on)
dmaEn
dmaEn
dmaEn
dmaEn
dmaEn
dmaEn
dmaEn
dmaEn
FIFO
ECP
(on)
EPP
IRQE
IRQE
(on)
RES
TEST
CONFIG
IRQE
5) Real Time Clock and Keyboard Controller: Refer to the RTC and KBD section of this spec.
SMSC Defined Logical Device Configuration Registers
The SMSC Specific Logical Device Configuration Registers reset to their default values only on hard resets
generated by Vcc POR or VTR POR or VBAT POR (as shown) or the RESET_DRV signal.
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