52 Device Overview Copyright 2012 Texas Instruments Incorporated
SPRS814A—August 2012
Fixed and Floating-Point Digital Signal Processor
TMS320C6655/57
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Table 2-20 Terminal Functions — Power and Ground
Supply Ball No. Volts Description
AVDDA1 Y15 1.8 PLL Supply - CORE_PLL
AVDDA2 F20 1.8 PLL Supply - DDR3_PLL
CVDD H9, H11, H13, H15, H17, J10, J12, J14, J16, K11, K13, K15, L8, L10, L12, L14, L16, L18, M9, M11,
M13, M15, M17, N8, N10, N12, N14, N16, N18, P9, P11, P13, P15, P17, P19, R10, R12, R14, R16,
R18, T11, T13, T15, U10, U12, U14, U16, V9, V11, V13, V15, V17
0.85
to 1.1
SmartReflex core supply voltage
CVDD1 J8, J18, K9, K17, T9, T17, U8, U18 1.0 Fixed core supply voltage for
memory array
DVDD15 B10, C6, C17, C21, D2, D4, D8, D13, D15, D19, F7, F9, F11, F13, F17, F19, G8, G10, G12, G14,
G16, G18
1.5 DDR IO supply
DVDD18 A24, E21, G3, G6, H7, H19, H24, J6, K3, K7, L6, M7, N3, N6, P7, R6, R20, T3, T7, T19, T24, U6,
U20, V7, V19, W6, W14, W16, W18, W20, Y3, Y13, Y17, AB23, AC16, AC20
1.8 IO supply
VDDR1 M20 1.5 HyperLink SerDes regulator supply
VDDR2 AA9 1.5 PCIe SerDes regulator supply
VDDR3 AA3 1.5 SGMII SerDes regulator supply
VDDR4 AA5 1.5 SRIO SerDes regulator supply
VDDT1 K19, L20, M19, N20 1.0 HyperLink SerDes termination
supply
VDDT2 W8, W10, W12, Y7, Y9, Y11 1.0 SGMII/SRIO/PCIe SerDes
termination supply
VREFSSTL E12 0.75 DDR3 reference voltage
VSS A1, A10, A25, B6, B17, C2, C4, C8, C13, C15, C19, D21, E11, F3, F6, F8, F10, F12, F14, F16, F18,
G7, G9, G11, G13, G15, G17, H6, H8, H10, H12, H14, H16, H18, H20, H21, H23, H25, J7, J9, J11,
J13, J15, J17, J19, J22, J23, J24, K2, K6, K8, K10, K12, K14, K16, K18, K20, K23, L7, L9, L11, L13,
L15, L17, L19, L21, L23, L25, M6, M8, M10, M12, M14, M16, M18, M22, M23, M24, N4, N7, N9,
N11, N13, N15, N17, N19, N23, P6, P8, P10, P12, P14, P16, P18, P20, P21, P23, P25, R7, R8, R9,
R11, R13, R15, R17, R19, R22, R24, T2, T6, T8, T10, T12, T14, T16, T18, T20, U7, U9, U11, U13,
U15, U17, U19, V6, V8, V10, V12, V14, V16, V18, V20, W3, W7, W9, W11, W13, W15, W17, W19,
Y6, Y8, Y10, Y12, Y14, Y16, AA4, AA6, AA8, AA10, AB2, AB6, AB9, AB12, AB20, AB24, AC1, AC4,
AC7, AC10, AC13, AD1, AD2, AD3, AD6, AD9, AD12, AD16, AE1, AE4, AE7, AE10, AE13, AE25
GND Ground
End of Table 2-20