MB86612 Datasheet, PDF (10/40 Pages) Fujitsu Component Limited. – IEEE 1394 Bus Controller (for MPEG, DVC)

MB86612
(Continued)
Pin name
I/O
TS
I/O
IERR
O
CTR
O
OCLK
O
3. System Interface
Pin name
I/O
CS
I
A5 to A1
I
D15 to D6, D0
I/O
AD5 to AD1
I/O
RD (R/W)
I
WR (DS)
I
ALE
I
INT
O
Function
Sending: DVC mode time stamp trigger signal input pin.
(Input) The cycle timer value when this signal is asserted is added to the sending
offset value and becomes the sending time stamp.
Receiving: Time stamp match detect signal.
(output) In MPEG mode, this signal is negative after reading 1 source packet of
data.
In DVC mode, this signal is asserted for the duration of 32 ticlk (32 periods of the
ICLK signal).
If an error is detected in a receiving isochronous packet this signal is not output.
This signal is output when an error is detected in a receiving isochronous packet.
When an error is detected the TS signal is not output, so that this signal should
be used to trigger reading of the receiving packet.
If an error such as causing discarding of received packets within a device, this
signal is not output.
This signal is output when the cycle timer value is changed.
This signal may be output or not output, according to the CTR bit (bit 0) in the
mode-control register.
Cycle timer clock output (24.576 MHz).
This signal may be output or not output, according to the CTR bit (bit 0) in the
mode-control register.
Function
Input pin for signals used by the MPU to select the MB86612 as an I/O device.
Address input pins for internal register selection.
Valid only in non-multiplexed mode.
If multiplexed mode is selected these pins should be fixed at ‘0’.
16-bit data bus input/output pins (MSB is D15, LSB is D0).
16-bit data bus input/output pins (MSB is AD5, LSB is AD1). Used for address
input signals when multiplexed mode is selected.
80-series mode: Read strobe signal input pin, used to output data from the
MB86612 to the data bus.
68-series mode: Control signal input pin, used for data input/output operations to
the MB86612.
80-series mode: Write strobe signal input pin, used to input data from the data
bus to the MB86612.
68-series mode: DS signal input pin, output when data bus is enabled.
ALE signal input pin, for signal output when addresses are enabled in multiplexed
mode. In non-multiplexed mode, this signal should be fixed at ‘0’.
Interrupt output pin.
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