Intel LPCI-7200S manual Register Format, 3.1 I/O Registers Format

3

Register Format

3.1 I/O Registers Format

The PCI-7200 occupies 8 consecutive 32-bit I/O addresses in the PC I/O address space. The cPCI-7200 occupies 9 consecutive 32-bit I/O addresses. Table 4.1 shows the I/O Map

Address	Read	Write
Base + 0	Counter 0	Counter 0
Base + 4	Counter 1	Counter 1
Base + 8	Counter 2	Counter 2
Base + C	---	CLK Control CW0
Base + 10	Digital Input Reg.	---
Base + 14	Digital Output	Digital Output Reg.
	(Read-back)
		DIO Status &Control
Base + 18	DIO Status & Control
Base + 1C	INT Status & Control	INT Status & Control
Base + 20	AUXDIO Reg.	AUXDO Reg.
(cPCI-7200
only)

Note: (1) I/O port is 32-bits wide

(2) 8-bit or 16-bit I/O access is not allowed

Register Format • 21