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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.
Содержание HD6417641
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Страница 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
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Страница 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Страница 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Страница 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Страница 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Страница 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Страница 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Страница 500: ...Section 13 Direct Memory Access Controller DMAC Rev 4 00 Sep 14 2005 Page 450 of 982 REJ09B0023 0400...
Страница 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Страница 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Страница 734: ...Section 18 Multi Function Timer Pulse Unit MTU Rev 4 00 Sep 14 2005 Page 684 of 982 REJ09B0023 0400...
Страница 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Страница 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Страница 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Страница 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Страница 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Страница 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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Страница 1036: ...SH7641 Hardware Manual...