AT83EC5123 ATMEL Corporation, AT83EC5123 Datasheet - Page 122

• Manufacturer Part Number: AT83EC5123
• Description: (AT8xx512x) Smart Card Reader ICs
• Manufacturer: ATMEL Corporation

Figure 81. Interrupt Control System
122
INT1/OE
CPRES
INT0#
P5.x
MISO
MOSI
CCLK
SCK
RXD
RXD
TXD
CIO
note (1): only for AT8xC5122
D+
D-
AT8xC5122/23
OELEV
ISEL.3
CPLEV
ISEL.7
0
1
1
0
CONTROLLER
CONTROLLER
CONTROLLER
CONTROLLER
SMART CARD
INTERFACE
INTERFACE
ISEL.1
PRESEN
ISEL.0
ISEL.2
RXEN
OEEN
SERIAL
KBLSx
USB
SPI
0
1
Each of the interrupt sources can be individually enabled or disabled by setting or clear-
ing a bit in the Interrupt Enable registers (Table 92 on page 125 and Table 93 on page
126). These registers also contain a global disable bit, which must be cleared to disable
all interrupts at once.
KBFx
TCON.0
TCON.2
IT0
IT1
0
1
0
1
PRESIT
TCON.3
TCON.1
TCON.5
TCON.7
SCON.0
SCON.1
KBEx
ISEL.5
ISEL.4
RXIT
IE0
IE1
TF1
TF0
RI
TI
(1)
ESPI
IEN0.0
IEN0.1
IEN0.2
IEN0.3
IEN0.4
EKB
IEN1.0
IEN1.2
IEN1.3
IEN1.6
EUSB
ESCI
EX0
ET0
EX1
ET1
ES
Interrupt Enable
(1)
(1)
IEN0.7
EA
Priority Enable
IPH/L
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
Lowest Priority
Interrupts
Highest Priority
4202B–SCR–07/03
Interrupts