at89c51re2-slsem ATMEL Corporation, at89c51re2-slsem Datasheet - Page 12

• Manufacturer Part Number: at89c51re2-slsem
• Description: At89c51re2 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

Table 11. SPI Controller SFRs
Table 12. Keyboard Interface SFRs
12
SPCON
SPSCR
SPDAT
KBLS
KBE
KBF
Mnemonic
Mnemonic
AT89C51RE2
Add
Add
C3h
C4h
C5h
9Ch
9Dh
9Eh
Name
SPI Control
SPI Status
SPI Data
Name
Keyboard Level Selector
Keyboard Input Enable
Keyboard Flag Register
KBLS7
SPR2
SPD7
KBE7
KBF7
SPIF
7
7
KBLS6
SPEN
SPD6
KBE6
KBF6
6
6
SSDIS
KBLS5
SPD5
KBE5
KBF5
OVR
5
5
KBLS4
MODF
MSTR
SPD4
KBE4
KBF4
4
4
KBLS3
CPOL
SPTE
SPD3
KBE3
KBF3
3
3
UARTM
KBLS2
CPHA
SPD2
KBE2
KBF2
2
2
SPTEIE
KBLS1
SPR1
SPD1
KBE1
KBF1
1
1
7663B–8051–03/07
MODFIE
KBLS0
SPR0
SPD0
KBE0
KBF0
0
0