14
Specifications ispGDX Family
TOE 178 A12
RESET 185 D10
Y0, Y1, Y2, Y3, 75, 76, 180, 181 V10, Y10, C11, A11
BSCAN/ispEN 183 B10
TDI/SDI 81 Y12
TCK/SCLK 80 U11
TMS/MODE 79 V11
TDO/SDO 78 W11
GND 6, 15, 25, 35, 44, 54, 63, 77, 91, 100, 110, 119, 129, A1, D4, D8, D13, D17, H4, H17, J9, J10, J11, J12,
139, 148, 159, 168, 182, 195, 204 K9, K10, K11, K12, L9, L10, L11, L12, M9, M10,
M11, M12, N4, N17, U4, U8, U13, U17
VCC 1, 17, 33, 49, 65, 89, 105, 121, 137, 153, 170, 184 D6, D11, D15, F4, F17, K4, L17, R4, R17, U6, U10,
193 U15
NC173, 74, 156, 179 A2, A6, A7, A10, A15, A19, A20, B1, B2, B4, B11,
B14, B18, B19, B20, C2, C3, C10, C18, D2, D3, D16,
E2, E17, E19, H1, H3, H18, H20, K20, L1, N1, N3,
N18, N20, T2, T4, T19, U5, U18, U19, V3, V14, V18,
V19, W1, W2, W3, W7, W10, W14, W19, W20, Y1,
Y2, Y6, Y9, Y11, Y18, Y20
Signal Descriptions
I/O Input/Output Pins – These are the general purpose bidirectional data pins. When used as outputs, each
may be independently latched, registered or tristated. They can also each assume one other control
function (OE, CLK and MUXsel as described in the text).
TOE Test Output Enable pin – This pin tristates all I/O pins when a logic low is driven.
RESET Active LOW Input Pin – Resets all I/O register outputs when LOW.
Y0, Y1, Y2, Y3 Input Pins – Dedicated clock input pins. Each pin can drive any or all I/O cell registers.
BSCAN/ispEN Input Pin – When HIGH, this pin enables the Boundary Scan Test and Programming Interface. When
LOW, this pin enables the Lattice ISP protocol for programming and tristates all I/O pins, except those
used for the programming interface.
TDI/SDI Input/Input Pin – Serial data input during ISP programming or Boundary Scan mode.
TCK/SCLK Input/Input Pin – Serial data clock during ISP programming or Boundary Scan mode.
TMS/MODE Input/Input Pin – Control input during ISP programming or Boundary Scan mode.
TDO/SDO Output/Output Pin – Serial data output during ISP programming or Boundary Scan mode.
GND Ground (GND)
VCC Vcc – Supply voltage (5V).
NC1No Connect.
Signal Name Description
1. NC pins are not to be connected to any active signals, VCC or GND.
Signal 208-Pin PQFP 272-Ball BGA
1. NC pins are not to be connected to any active signals, VCC or GND.
Signal Locations: ispGDX160/A