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Section 1 Overview
Rev. 4.00 Sep. 14, 2005 Page 19 of 982
REJ09B0023-0400
Classification Symbol I/O
Name
Function
CKIO
O
System clock
Supplies the system clock to external
devices.
Clock
CKIO2
O
System clock
Supplies the system clock to external
devices.
Operating mode
control
MD3, MD2,
MD0
I
Mode set
Sets the operating mode. Do not
change values on these pins during
operation.
MD2, MD0 set the clock mode, MD3
set the bus-width mode of area 0.
RESETP
I
Power-on reset
When low, this LSI enters the power-
on reset state.
RESETM
I
Manual reset
When low, this LSI enters the
manual reset state.
STATUS1,
STATUS0
O
Status output
Indicate that this LSI is in software
standby, reset, or sleep mode.
BREQ
I
Bus-mastership
request
Low when an external device
requests the release of the bus
mastership.
System control
BACK
O
Bus-mastership
request
acknowledge
Indicates that the bus mastership
has been released to an external
device. Reception of the
BACK
signal informs the device which has
output the
BREQ
signal that it has
acquired the bus.
NMI
I
Non-maskable
interrupt
Non-maskable interrupt request pin.
Fix to high level when not in use.
Interrupts
IRQ7
to
IRQ0
I
Interrupt requests
7 to 0
Maskable interrupt request pin.
Selectable as level input or edge
input. The rising edge, falling edge,
and both edges are selectable as
edges.
Address bus
A25 to A0
O
Address bus
Outputs addresses.
Data bus
D31 to D0
I/O
Data bus
32-bit bidirectional bus.
CS0
,
CS2
to
CS4
,
CS5A
,
CS5B
,
CS6A
,
CS6B
O
Chip select 0,
2 to 4, 5A, 5B,
6A, 6B
Chip-select signal for external
memory or devices.
Bus control
RD
O
Read
Indicates reading of data from
external devices.
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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