r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 328

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 6 Bus Controller (BSC)
6.10.2
Table 6.13 shows the pin states in an idle cycle.
Table 6.13 Pin States in Idle Cycle
Notes: 1. Remains low in DRAM space RAS down mode.
Rev. 1.00 Sep. 19, 2008 Page 298 of 1342
REJ09B0467-0100
Pins
A23 to A0
D15 to D0
CSn (n = 7 to 0)
UCAS, LCAS
AS/AH
RD
OE
HWR, LWR
DACKn (n = 1, 0)
EDACKn (n = 3 to 0)
2. Remains low in a DRAM space refresh cycle.
Pin States in Idle Cycle
Pin State
High impedance
Contents of following bus cycle
High *
High *
High
High
High
High
High
High
1
2
*
2