M16C6K9 Datasheet, PDF (163/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
LPC Bus Interface
______________
Table GF-3 Conditions of LPC bus interface function induced by LRESET input
Pin name / Internal register
______________
LRESET=“H”
______________
LRESET=“L”
Note
P30/LAD0
P31/LAD1
P32/LAD2
P33/LAD3
_________________
P34/LFRAME
_______________
P35/LRESET
P36/LCLK
P40/OBF00
P43/OBF01
P44/OBF1
P45/OBF2
P46/OBF3
P42/GateA20
Input data bus buffer
Output data bus buffer
U flag 7,6,5,4,2
LPC bus interface
function(function is
select)
XA2 flag
IBF flag
OBF flag
LPCADH/L
LPCCON
GA20 circuit
I/O port
I/O port
LPC bus interface function
I/O port
OBF output is enable until
______________
LRESET=“L”. A spike pulse may
be output to the port when the port
is already set to L output port and
OBF signal is output to the port
______________
just before LRESET is set to L.
unstable
It can't be written by slave side.
It can be written and read by Initialization to “0” only for
slave side.
DBBSTS0.
Initialization to “0”
Initialization to “0”
There is possibility to generate
IBF interrupt request.
Initialization to “0”
There is possibility to generate
OBE interrupt request.
It can be written and read by
slave side.
It can be written and read by
slave side.
Initialization
Rev.1.00 Jun 06, 2003 page 163 of 290