h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 41
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h8s-2172
Manufacturer Part Number
h8s-2172
Description
Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2172.pdf
(570 pages)
- Current page: 41 of 570
- Download datasheet (5Mb)
Type
Interrupt
signals
Address bus A19
Data bus
Bus control
Symbol
NMI
IRQ7 to
IRQ0
(IRQ7) to
(IRQ0)
A18
A17
A16
A15 to A8
A7 to A0
D15 to D8,
D7 to D0
CS3
CS2/
RAS
CS1
CS0
AS
RD
HWR
LWR
UCAS
LCAS
Pin No.
6
71 to 78
91, 92,
28, 27,
95, 96,
99, 100
2,
1,
100,
99,
59 to 66,
71 to 78
79 to 86,
91 to 98
2
20
21
22
16
17
18
19
1
100
I/O
Input
Input
Input
Output These pins output an address.
Input/
output
Output Strobe signal indicating that area 3 is selected.
Output Strobe signal indicating that area 2 is selected. Row
Output Strobe signal indicating that area 1 is selected.
Output Strobe signal indicating that area 0 is selected.
Output When this pin is low, it indicates that address output
Output When this pin is low, it indicates that the normal
Output Strobe signal indicating that normal space is to be
Output Strobe signal indicating that normal space is to be
Output Upper column address strobe signal for accessing
Output Lower column address strobe signal for accessing
Nonmaskable interrupt request pin. Fix high when
Function
not used.
These pins request a maskable interrupt. The IRQ
sense port select register (ISSR) selects whether
the signal is input from the IRQn or (IRQn).
(n = 7 to 0)
These pins constitute a bidirectional data bus.
address strobe signal for the DRAM.
on the address bus is valid.
space is being read.
written, and the upper half (D15 to D8) of the data
bus is enabled.
written, and the lower half (D7 to D0) of the data bus
is enabled.
the 16-bit DRAM space or column address strobe
signal for accessing the 8-bit DRAM space.
the 16-bit DRAM space.
Rev. 2.00, 03/04, page 9 of 534
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