AM1806_11 Datasheet, PDF (54/244 Pages) Texas Instruments – AM1806 ARM Microprocessor

AM1806
SPRS658C – FEBRUARY 2010 – REVISED APRIL 2011
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2.7.25 Supply and Ground
Table 2-27. Supply and Ground Terminal Functions
SIGNAL
NAME
TYPE ⁽¹⁾
NO.
DESCRIPTION
CVDD (Core supply)
E15, G7, G8,
G13, H6, H7,
H10, H11,
H12, H13, J6,
J12, K6, K12,
L12, M8, M9,
N8
PWR Variable (1.2V - 1.0V) core supply voltage pins
RVDD (Internal RAM supply)
E5, H14, N7
PWR 1.2V internal ram supply voltage pins
DVDD18 (I/O supply)
F14, G6, G10,
G11, G12,
J13, K5, L6,
P13, R13
PWR
1.8V I/O supply voltage pins. DVDD18 must be powered even if all of
the DVDD3318_x supplies are operated at 3.3V.
DVDD3318_A (I/O supply)
F5, F15, G5,
G14, G15, H5
PWR 1.8V or 3.3-V dual-voltage LVCMOS I/O supply voltage pins, Group A
DVDD3318_B (I/O supply)
E14, F6, F7,
F8, F10, F11,
F12, F13, G9,
J14, K15
PWR 1.8V or 3.3-V dual-voltage LVCMOS I/O supply voltage pins, Group B
DVDD3318_C (I/O supply)
J5, K13, L4,
L13, M13,
N13, P5, P6,
P12, R4
PWR 1.8V or 3.3-V dual-voltage LVCMOS I/O supply voltage pins, Group C
VSS (Ground)
A19, H1, H2,
H8, H9, H15,
J7, J8, J9, J10,
J11, K1, K2,
K7, K8, K9,
K10, K11, L3,
L5, L7, L8, L9,
L10, L11, M1,
M4, M5, M6,
M7, M10, M11,
N5, N11, N12,
P11
GND
Ground pins.
USB0_VDDA33
N18
PWR USB0 PHY 3.3-V supply
USB0_VDDA18
N14
PWR USB0 PHY 1.8-V supply input
USB0_VDDA12
N17
A
USB0 PHY 1.2-V LDO output for bypass cap
USB_CVDD
M12
PWR USB0 core logic 1.2-V supply input
DDR_DVDD18
N10, P10, N9,
P9, R9, P8,
R8, P7, R7, N6
PWR
DDR PHY 1.8V power supply pins
(1) PWR = Supply voltage, GND - Ground.
2.8 Unused Pin Configurations
All signals multiplexed with multiple functions may be used as an alternate function if a given peripheral is
not used. Unused non-multiplexed signals and some other specific signals should be handled as specified
in the tables below.
If NMI is unused, it should be pulled-high externally through a 10k-ohm resistor to supply DVDD3318_B.
SIGNAL NAME
USB0_DM
USB0_DP
Table 2-28. Unused USB0 Signal Configurations
Configuration
No Connect
No Connect
54
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