h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 177
h8s-2161b
Manufacturer Part Number
h8s-2161b
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2161B.pdf
(845 pages)
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6.2
Table 6.1 summarizes the pins of the bus controller.
Table 6.1
6.3
The bus controller has the following registers. For details on the system control register, refer to
section 3.2.2, System Control Register (SYSCR).
Symbol
AS
IOS
RD
HWR
LWR
WAIT
Bus control register (BCR)
Wait state control register (WSCR)
Register Descriptions
Input/Output Pins
Pin Configuration
I/O
Output
Output
Output
Output
Output
Input
Function
Strobe signal indicating that address output on the address
bus is enabled (when the IOSE bit in SYSCR is cleared to 0).
I/O select signal (when the IOSE bit in SYSCR is set to 1).
Strobe signal indicating that the external address space is
being read.
Strobe signal indicating that the external address space is
being written to, and the upper half (D15 to D8) of the data
bus is enabled.
Strobe signal indicating that the external address space is
being written to, and the lower half (D7 to D0) of the data bus
is enabled.
Wait request signal when accessing the external 3-state
access space.
Rev. 3.00 Mar 21, 2006 page 123 of 788
Section 6 Bus Controller (BSC)
REJ09B0300-0300
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