Maxim DS33R11 specifications Pin Functional Description Detailed Pin Descriptions, Ioz

DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver

7 PIN DESCRIPTIONS

7.1Pin Functional Description

Note that all digital pins are IO pins in JTAG mode. This feature increases the effectiveness of board level ATPG patterns.

LEGEND: I = input, O = output, Ipu = input with pullup, Oz = output with tri-state, IO = bidirectional pin, IOz = bidirectional pin with tri-state.

Table 7-1. Detailed Pin Descriptions

NAME	PIN	TYPE		FUNCTION
			MICROPROCESSOR PORT
A0	A18	I		Address Bit 0: Address bit 0 of the microprocessor interface.
				Least Significant Bit.
A1	B18	I		Address Bit 1: Address bit 1 of the microprocessor interface.
A2	C18	I		Address Bit 2: Address bit 2 of the microprocessor interface.
A3	A17	I		Address Bit 3: Address bit 3 of the microprocessor interface.
A4	B17	I		Address Bit 4: Address bit 4 of the microprocessor interface.
A5	C17	I		Address Bit 5: Address bit 5 of the microprocessor interface.
A6	A16	I		Address Bit 6: Address bit 6 of the microprocessor interface.
A7	B16	I		Address Bit 7: Address bit 7 of the microprocessor interface.
A8	C16	I		Address Bit 8: Address bit 8 of the microprocessor interface.
A9	C15	I		Address Bit 9: Address bit 9 of the microprocessor interface.
D0	A14	IOZ		Data Bit 0: Bidirectional data bit 0 of the microprocessor interface.
				Least Significant Bit. Not driven when CS =1 or RST = 0.
D1	B14	IOZ		Data Bit 1: Bidirectional data bit 1 of the microprocessor interface.
				Not driven when CS = 1 or RST = 0.
D2	C14	IOZ		Data Bit 2: Bidirectional data bit 2 of the microprocessor interface.
				Not driven when CS = 1 or RST = 0.
D3	A13	IOZ		Data Bit 3: Bidirectional data bit 3 of the microprocessor interface.
				Not driven when CS = 1 or RST = 0.
D4	B13	IOZ		Data Bit 4: Bidirectional data bit 4 of the microprocessor interface.
				Not driven when CS = 1 or RST = 0.
D5	C13	IOZ		Data Bit 5: Bidirectional data bit 5 of the microprocessor interface.
				Not driven when CS = 1 or RST = 0.
D6	A12	IOZ		Data Bit 6: Bidirectional data bit 6 of the microprocessor interface.
				Not driven when CS = 1 or RST = 0.
D7	B12	IOZ		Data Bit 7: Bidirectional data bit 7 of the microprocessor interface.
				Most Significant Bit. Not driven when CS = 1 or RST = 0.
				Write (Intel Mode): The DS33R11 captures the contents of the
				data bus (D0-D7) on the rising edge of WR and writes them to the
				addressed register location. CS must be held low during write
WR/RW	C11	I		operations.
				Read Write (Motorola Mode): Used to indicate read or write
				operation. RW must be set high for a register read cycle and low for
				a register write cycle.

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