AM3517_12 Datasheet, PDF (77/222 Pages) Texas Instruments – ARM Microprocessors

AM3517, AM3505
www.ti.com
SPRS550D – OCTOBER 2009 – REVISED MARCH 2012
2.4.8 System and Miscellaneous Terminals
SIGNAL NAME [1]
sys_32k
sys_xtalin
sys_xtalout
sys_altclk
sys_clkreq
sys_clkout1
sys_clkout2
sys_boot0
sys_boot1
sys_boot2
sys_boot3
sys_boot4
sys_boot5
sys_boot6
sys_boot7
sys_boot8
sys_nrespwron
sys_nreswarm
sys_nirq
sys_ndmareq0
sys_ndmareq1
sys_ndmareq2
sys_ndmareq3
Table 2-26. System and Miscellaneous Signals Description
DESCRIPTION [2]
TYPE [3]
32-kHz clock input
I
Main input clock. Oscillator input
I
Output of oscillator
O
Alternate clock source selectable for
I
GPTIMERs (maximum 54 MHz), USB (48
MHz) , or NTSC/PAL (54 MHz)
Request from device for system clock (open IO
source type)
Configurable output clock1
O
Configurable output clock2
O
Boot configuration mode bit 0
I
Boot configuration mode bit 1
I
Boot configuration mode bit 2
I
Boot configuration mode bit 3
I
Boot configuration mode bit 4
I
Boot configuration mode bit 5
I
Boot configuration mode bit 6
I
Boot configuration mode bit 7
I
Boot configuration mode bit 8
I
Power On Reset
I
Warm Boot Reset (open drain output)
IOD
External FIQ input
I
External DMA request 0 (system
I
expansion). Level (active low) or edge
(falling) selectable.
External DMA request 1 (system
I
expansion). Level (active low) or edge
(falling) selectable.
External DMA request 2 (system
I
expansion). Level (active low) or edge
(falling) selectable.
External DMA request 3 (system
I
expansion). Level (active low) or edge
(falling) selectable.
ZCN BALL [4]
K24
K25
H25
L25
M24
N25
M25
Y4
AA1
AA2
AA3
AB1
AB2
AC1
AC2
AC3
Y2
Y3
Y1
M3
M2,U1
F1,M1
G6,N5
ZER BALL [4]
A8
A10
A9
B9
B8
E9
E10
AB19
AB20
W18
AA19
V18
Y19
W19
AA20
Y20
AA18
Y18
AB18
V12
AA11,V14
W12,AB7
AA12,V6
Copyright © 2009–2012, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Link(s): AM3517 AM3505
Terminal Description
77