Datasheet

Section 3 MCU Operating Modes
Rev. 3.00 Sep. 28, 2009 Page 72 of 910
REJ09B0350-0300
Bit Bit Name
Initial
Value
R/W Description
3 FLSHE 0 R/W Flash Memory Control Register Enable
Enables or disables CPU access for flash memory
registers (FCCS, FPCS, FECS, FKEY, FMATS, and
FTDAR), power-down state control registers (SBYCR,
LPWRCR, MSTPCRH, and MSTPCRL), and on-chip
peripheral module control registers (PCSR).
0: When RELOCATE is 0, control registers of power-
down state and peripheral modules are accessed in
an area from H'(FF)FF80 to H'(FF)FF87. Area from
H'(FF)FEA8 to H'(FF)FEAE is reserved.
When RELOCATE is 1, control registers of power-
down state and peripheral modules are accessed in
an area from H'(FF)FF80 to H'(FF)FF87. Area from
H'(FF)FEA8 to H'(FF)FEAE is reserved.
1: When RELOCATE is 0, control registers of flash
memory are accessed in an area from H'(FF)FEA8 to
H'(FF)FEAE. Area from H'(FF)FF80 to H'(FF)FF87 is
reserved.
When RELOCATE is 1, control registers of power-
down state and peripheral modules are accessed in
an area from H'(FF)FF80 to H'(FF)FF87. Control
registers of flash memory are accessed in an area
from H'(FF)FEA8 to H'(FF)FEAE.
2 IICS 0 R/(W) I
2
C Extra Buffer Select
Specifies bits 7 to 4 of port A as output buffers similar to
SLC and SDA. These pins are used to implement an I
2
C
interface only by software.
0: PA7 to PA4 are normal input/output pins.
1: PA7 to PA4 are input/output pins enabling bus
driving.
1
0
ICKS1
ICKS0
0
0
R/W
R/W
Internal Clock Source Select 1 and 0
These bits select a clock to be input to the timer counter
(TCNT) and a count condition together with bits CKS2
to CKS0 in the timer control register (TCR). For details,
see section 13.3.4, Timer Control Register (TCR).