YR0K42378FC000BA Renesas Electronics America, YR0K42378FC000BA Datasheet - Page 118

• Manufacturer Part Number: YR0K42378FC000BA
• Description: KIT EVAL FOR H8S/2378
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of YR0K42378FC000BA

• Contents: Board
• For Use With/related Products: H8S/2378
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Section 2 CPU
2.5.2
Figure 2.10 shows the data formats in memory. The H8S/2000 CPU can access word data and
longword data in memory, but word or longword data must begin at an even address. If an attempt
is made to access word or longword data at an odd address, no address error occurs but the least
significant bit of the address is regarded as 0, so the access starts at the preceding address. This
also applies to instruction fetches.
When SP (ER7) is used as an address register to access the stack, the operand size should be word
size or longword size.
Rev.7.00 Mar. 18, 2009 page 50 of 1136
REJ09B0109-0700
Memory Data Formats
Data Type
1-bit data
Byte data
Word data
Longword data
Figure 2.10 Memory Data Formats
Address
Address L
Address L
Address 2M
Address 2M+1
Address 2N
Address 2N+1
Address 2N+2
Address 2N+3
MSB
MSB
MSB
7
7
6
Data Format
5
4
3
2
1
LSB
LSB
LSB
0
0