Figure 2-12, Device pin mechanism -25 – SMC Networks ARM PL241 User Manual
Page 45
Functional Overview
ARM DDI 0389B
Copyright © 2006 ARM Limited. All rights reserved.
2-25
Figure 2-12 Device pin mechanism
:ULWHWLPLQJSDUDPHWHUV
DQGRSHUDWLQJPRGHWR
WKHPHPRU\FRQWUROOHU
KROGLQJUHJLVWHUV
6WDUW
:ULWHUHTXLUHGH[WHUQDOFKLS
VHOHFWQXPEHUDQGUHTXLUHG
PRGHUHJLVWHUYDOXHWRWKH
'LUHFW&RPPDQG5HJLVWHU
(QG
7KHPHPRU\FRQWUROOHUSDVVHVWKLVPRGHUHJLVWHU
FRPPDQGWRWKHPHPRU\LQWHUIDFHDQGVHWVDUHTXHVW
UHTVLJQDO7KHPHPRU\FRQWUROOHUGRHVQRWDFFHSWDQ\
PRUHFRQILJXUDWLRQSRUWFRPPDQGVXQWLO
UHTLVFOHDUHG
:KHQWKHPHPRU\LQWHUIDFHLVVXHVWKHPRGHUHT
FRPPDQGWRPHPRU\LWUHVSRQGVWRWKHUHTVLJQDOZLWKDQ
DFNUHVSRQVHVLJQDO7KHPHPRU\LQWHUIDFHEORFNVDQ\
PRUHDFFHVVHVWRWKDWFKLSVHOHFWXQWLOUHTLVFOHDUHG
7KHPHPRU\FRQWUROOHUGHWHFWVWKHDFNVLJQDODQGXSGDWHV
WKHPRGHDQGWLPLQJUHJLVWHUVRIWKHUHOHYDQWFKLSVHOHFW
DQGQHJDWHVUHT
7KHPHPRU\LQWHUIDFHGHWHFWVWKHQHJDWLRQRIUHTFOHDUV
DFNDQGUHHQDEOHVDFFHVVHVWRWKHXSGDWHGFKLSVHOHFW
PHPRU\