User`s manual

Am186™CC Microcontroller Router Reference Design User’s Manual
B-1
Appendix B
Am186
™
CC Microcontroller
Router Reference Design PIO
Resources, Chip Selects,
Interrupts, and LEDs
This appendix provides Am186CC microcontroller router reference design PIO
resources, chip selects, interrupts, and LED status in Table B-1 through Table B-4.
Table B-1. PIO Resource Assignments
PIO Signal Function
PIO35 SRDY Flash memory bank select
PIO31 PCS7 Flash memory RY/BY
input
PIO42 RXD_C USB_DETECT
PIO43 TXD_C USB_VCC
PIO18 RTRA LED ISDN B1
PIO39 RTR_B LED ISDN B2
PIO32 PCS6 LED ISDN D
PIO8 ARDY LED USB
PIO17 CTSA CE for DSLAC
PIO28 TMROUT0 High-Speed UART Pnp - DSR
PIO27 TMRIN0 High-Speed UART PnP - RI
PIO1 TMROUT1 High-Speed UART Pnp - DTR
PIO0 TMRIN1 High-Speed UART Pnp - CD
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