!
SLLS536
–
AUGUST 2002
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Signal Terminal Functions (Continued)
miscellaneous terminals
SIGNAL
LOCATION
TYPE
DESCRIPTION
RSTN
U1
LVTTL input
(with pullup)
Chip reset. Low-true device reset. When low, the DLKPC192S is held in a reset state.
TEST
U2
LVTTL input
(with pullup)
Test. When this terminal is held high, the device is placed in test mode. This terminal
is used for device test during manufacturing. Some terminals of the device may change
functionality while TEST is high. The use of this terminal is reserved for Texas
Instruments and may provide for capabilities such as IDDQ testing. When TEST is low
the device operates normally.
AKR_NI
R14
LVTTL input
XGMII IPG mode. Controls the behavior of the transmit and receive FIFO circuits on
the XGMII input and output interface. See section on IPG modes.
voltage supply and reference terminals
SIGNAL
LOCATION
TYPE
DESCRIPTION
SSTL_REF
A3
Input
SSTL input voltage reference. 1.25 V relative to VSS
LVDS reference current for LVDS drivers. 1 k
to VSS
LVDS reference voltage for LVDS drivers. 1.2 V relative to VSS
LVDS reference current for LVDS receivers. 1 k
to VSS
LVDS reference voltage for LVDS receivers. 1.2 V relative to VSS
XBIOR_IREF
T17
Input
XBIOR_VREF
T16
Input
XBIIR_IREF
R3
Input
XBIIR_VREF
T3
Input
SSTL_MODE
R1
LVTTL input
Mode control for SSTL output buffers. A low value sets the output drivers in SSTL-2
mode, while a high value sets the outputs to SSTL-1 mode.
VDD
C3, G2, P3, T2, P9,
T15, C16, E15, G15,
K17, R16, D6, B8,
B11, D13
Supply
1.8 V. Provides power for core and I/O cells requiring it
VDDS
R5, R6, R8, P10,
R12 F16, G14, J17,
K13, N16, N13
Supply
3.3 V. Provides power for all LVDS and LVTTL I/Os
VDDO
B1, E2, J4, M4, P2,
F4, H2, L2, B3, A9,
B16, D8, D11
Supply
2.5 V. Provides power for all SSTL I/Os
VSS
A1, B2, D4, E1, F3,
H1, J3, L1, M3, R2,
T1, U3, U5, U6, R7,
U9, U10, R11, U15,
C17, D15, F17, F15,
H15, K16, L15, M17,
N17, R17, R15, A2,
C4, B6, A8, C8, A11,
C11, B13, C15
Ground
Ground. Return for all supplies
thermal ground terminals
SIGNAL
LOCATION
TYPE
DESCRIPTION
T-GND
F6, G6, H6, J6, K6, L6, M6, F7,
G7, H7, J7, K7, L7, M7, F8,
G8, H8, J8, K8, L8, M8, F9,
G9, H9, J9, K9, L9, M9, F10,
G10, H10, J10, K10, L10, M10,
F11, G11, H11, J11, K11, L11,
M11, F12, G12, H12, J12, K12,
L12, M12
Thermal ground connections