Maxim Integrated DS33R11 - Manual (Page 26)

DS33R11 Ethernet Mapper with Integrated T1/E1/J1 Transceiver
26 of 344
NAME PIN TYPE FUNCTION
RD/DS B11 I
Read Data Strobe (Intel Mode): The DS33R11 drives the data bus
(D0-D7) with the contents of the addressed register while
RD and
CS are both low.
Data Strobe (Motorola Mode): Used to latch data through the
microprocessor interface.
DS must be low during read and write
operations.
CS A11 I
Chip Select for Protocol Conversion Device: This pin must be
taken low for read/write operations. When
CS is high, the RD/DS
and WR signals are ignored.
CST D7 I
Chip Select for the T1/E1/J1 Transceiver: Must be low to read or
write the T1/E1/J1 transceiver.
INT A10 OZ
Interrupt Output: Outputs a logic zero when an unmasked
interrupt event is detected.
INT is deasserted when all interrupts
have been acknowledged and serviced. Active low. Inactive state is
programmable in register
GL.CR1 . is deasserted when all
interrupts have been acknowledged and serviced. Active low.
Inactive state is programmable in register
GL.CR1 .