Signal Description
The Figure below shows the TSS901E (also called SMCS332) embedded in a typical
module environment:
This section describes the pins of the TSS901E. Groups of pins represent busses where
the highest number is the MSB.
O = Output; I = Input; Z = High Impedance; (*) = active low signalO/Z = if using a config-
uration with two TSS901Es these signals can directly be connected together (WIROR)
max. output
Signal Name
HSEL*
Type
Function
current [mA]
load [pF]
I
I
I
Select host interface
HRD*
host interface read strobe
host interface write strobe
HWR*
TSS901E register address lines. This address lines will be
used to access (address) the TSS901E registers.
HADR(7:0)
I
HDATA(31:0)
IO/Z
TSS901E data
3
3
3
50
50
50
host acknowledge. TSS901E deasserts this output to add wait
states to a TSS901E access. After TSS901E is ready this
output will be asserted.
HACK
O/Z
HINTR*
O/Z
I
host interrupt request line
TSS901EADR(3:0
)
TSS901E Address. The binary value of this lines will be
compared with the value of the TSS901E ID lines.
TSS901E ID lines: offers possibility to use sixteen TSS901E
within one HSEL*
TSS901EID(3:0)
I
13
TSS901E
Rev. C – 24-Aug-01
ATMEL [ ATMEL ]
