AT91SAM9G45(2009) Просмотр технического описания (PDF) - Atmel Corporation

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AT91SAM9G45
(Rev.:2009)

AT91 ARM Thumb-based Microcontrollers

Atmel Corporation 

AT91SAM9G45

– D[24] <=> DELAY4[3:0],

– D[25] <=> DELAY4[7:4],...,

– D[30] <=> DELAY4[27:24],

– D[31] <=> DELAY4[31:28]

A[25:0], controlled by 4 registers, DELAY5, DELAY6, DELAY7and DELAY8, located in the

HSMC3 user interface

– A[0] <=> DELAY5[3:0],

– A[1] <=> DELAY5[7:4],...,

– A[6] <=> DELAY5[27:24],

– A[7] <=> DELAY5[31:28]

– A[8] <=> DELAY6[3:0],

– A[9] <=> DELAY6[7:4],...,

– A[14] <=> DELAY6[27:24],

– A[15] <=> DELAY6[31:28]

– A[16] <=> DELAY7[3:0],

– A[17] <=> DELAY7[7:4],

– A[18] <=> DELAY7[11:8]

A25 on PC[12] and A[24:19] on PC[7:2]

– A19 <=> DELAY7[15:12],

– A20 <=> DELAY7[19:16],...,

– A23 <=> DELAY7[31:28],

– A24 <=> DELAY8[3:0],

– A25 <=> DELAY8[7:4]

• PIOA User interface

The delay can only be inserted on the HSMCI0 and HSMCI1 I/O lines, so on PA[9:2] and

PA[30:23]. The delay is controlled by 2 registers, DELAY1 and DELAY2, located in the PIOA

user interface.

– PA[2] <=> DELAY1[3:0],

– PA[3] <=> DELAY1[7:4],...,

– PA[8] <=> DELAY1[27:24],

– PA[9] <=> DELAY1[31:28]

– PA[23] <=> DELAY2[3:0],

– PA[24] <=> DELAY2[7:4],...,

– PA[29] <=> DELAY2[27:24],

– PA[30] <=> DELAY2[31:28]

7. System Controller

The System Controller is a set of peripherals that allows handling of key elements of the system,

such as power, resets, clocks, time, interrupts, watchdog, etc.

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6438D–ATARM–13-Oct-09

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