Owner's manual

DS3131
18 of 174
PIN NAME TYPE FUNCTION
B3 LA16–RD29 I/O–I Local Bus Address Bit 16–Receive Serial Data for Port 29
B2 LA17–RC29 I/O–I Local Bus Address Bit 17–Receive Serial Clock for Port 29
A2 LA18–RD28 I/O–I Local Bus Address Bit 18–Receive Serial Data for Port 28
C3 LA19–RC28 I/O–I Local Bus Address Bit 19–Receive Serial Clock for Port 28
A18 LD0–TC28 I/O–I Local Bus Data Bit 0–Transmit Serial Clock for Port 28
A17 LD1–TD28 I/O–O Local Bus Data Bit 1–Transmit Serial Data for Port 28
C16 LD2–TC29 I/O–I Local bus Data Bit 2–Transmit Serial Clock for Port 29
B16 LD3–TD29 I/O–O Local Bus Data Bit 3–Transmit Serial Data for Port 29
A16 LD4–TC30 I/O–I Local Bus Data Bit 4–Transmit Serial Clock for Port 30
C15 LD5–TD30 I/O–O Local Bus Data Bit 5–Transmit Serial Data for Port 30
D14 LD6–TC31 I/O–I Local Bus Data Bit 6–Transmit Serial Clock for Port 31
B15 LD7–TD31 I/O–O Local Bus Data Bit 7–Transmit Serial Data for Port 31
A15 LD8–TC32 I/O–I Local Bus Data Bit 8–Transmit Serial Clock for Port 32
C14 LD9–TD32 I/O–O Local Bus Data Bit 9–Transmit Serial Data for Port 32
B14 LD10–TC33 I/O–I Local Bus Data Bit 10–Transmit Serial Clock for Port 33
A14 LD11–TD33 I/O–O Local Bus Data Bit 11–Transmit Serial Data for Port 33
C13 LD12–TC34 I/O–I Local Bus Data Bit 12–Transmit Serial Clock for Port 34
B13 LD13–TD34 I/O–O Local Bus Data Bit 13–Transmit Serial Data for Port 34
A13 LD14–TC35 I/O–I Local Bus Data Bit 14-Transmit Serial Clock for Port 35
D12 LD15–TD35 I/O–O Local Bus Data Bit 15–Transmit Serial Data for Port 35
C9 LMS–RD39 I–I Local Bus Mode Select–Receive Serial Data for Port 39
B11 LBHE–TD37 O–O Local Bus Byte High Enable–Transmit Serial Data for Port 37
B10 LHOLD–TD39 O–O Local Bus Hold (Local Bus Request)–Transmit Serial Data for Port 39
A9 LWR–RC39 I/O–I
Local Bus Write Enable (Local Bus Read/Write Select)–Receive Serial
Clock for Port 39
C12 LIM–TC36 I–I Local Bus Intel/Motorola Bus Select–Transmit Serial Clock for Port 36
C11 LHLDA–TC38 I–I
Local Bus Hold Acknowledge (Local Bus Grant)–Transmit Serial
Clock for Port 38
B12 LCLK–TD36 O–O Local Bus Clock–Transmit Serial Data for Port 36
A11 LBGACK–TD38 O–O Local Buses Grant Acknowledge–Transmit Serial Data for Port 38
A8 LRD–RD38 I/O–I
Local Bus Read Enable (Local Bus Data Strobe)–Receive Serial Data
for Port 38
A12 LINT–TC37 I/O–I Local Bus Interrupt–Transmit Serial Clock for Port 37
A10 LRDY–TC39 I–I Local Bus PCI Bridge Ready–Transmit Serial Clock for Port 39
B9 LBPXS I Local Bus Port Extension Select. Leave open to enable local bus.
B8 LCS–RC38 I–I Local Bus Chip Select–Receive Serial Data for Port 38
Y19 TEST I Test. Factory test signals; leave open-circuited.
D6, D10, D11,
D15, F4, F17,
K4, K17, L4,
L17, R4, R17,
U6, U10, U11,
U15
VDD — Positive Supply, 3.3V (±10%)
A1, D4, D8, D9,
D13, D17, H4,
H17, J17, M4,
N4, N17, U4,
U8, U12, U13,
U17
VSS — Ground
J9–J12, K9–
K12, L9–L12,
M1, M9–11
VSST — Ground and Thermal Dissipation Ball