h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 88

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Rev. 1.00, 05/04, page 54 of 544
Bit
1
0
Bit Name
HIE
RAME
Initial
Value
0
1
R/W
R/W
R/W
Description
Host Interface Enable
Controls CPU access to the keyboard matrix interrupt,
input pull-up MOS control registers (KMIMR, KMPCR,
and KMIMRA), and the 8-bit timer (TMR_X and
TMR_Y) registers (TCR_X/TCR_Y, TCSR_X/TCSR_Y,
TICRR/TCORA_Y, TICRF/TCORB_Y,
TCNT_X/TCNT_Y, TCORC/TISR, TCORA_X, and
TCORB_X, TCONRI, and TCONRS).
0: In areas H'(FF)FFF0 to H'(FF)FFF7 and H'(FF)FFFC
1: In areas H'(FF)FFF0 to H'(FF)FFF7 and H'(FF)FFFC
RAM Enable
Enables or disables on-chip RAM. The RAME bit is
initialized when the reset state is released.
0: On-chip RAM is disabled
1: On-chip RAM is enabled
to H'(FF)FFFF, CPU access to 8-bit timer (TMR_X
and TMR_Y) is permitted.
to H'(FF)FFFF, CPU access to keyboard matrix
interrupt and input pull-up MOS control registers is
permitted.