Patent ID: 7685351
Filing Date: 2010-03-23
Classification: G06F

Abstract:
1. An external device access apparatus which controls access from a master to an external device, said external device access apparatus comprising: a write address holder operable to hold a write address in response to a write request from the master to write to the external device; a write data holder operable to hold write data in response to the write request; a read address holder operable to hold a read address and which can be accessed from the master; a read data holder operable to hold data read from the external device and which can be accessed from the master; a status signal holder operable to hold a status signal which is outputted from the external device; and a controller operable to control the access to the external device in response to: the write request or a read request from the master; and an address specified by the master, wherein, in response to the write request from the master to write to the external device, said controller is operable to: wherein said controller is further operable to: said status signal holder outputs the held status signal to the master.