Mobile Access Interface Interrupt Outputs - Epson S1C33210 Technical Manual

III PERIPHERAL BLOCK: MONITORED MOBILE ACCESS INTERFACES
D. Interrupt source: Idle detect
Condition The signal latched into the idle detect changes from "0" to "1."
To clear Reset E/S INT command
(8) MSINT = Modem status change interrupt
Interrupt source Change in modem status input signals
Condition The RI, CTS, DCD, or DSR input signal changes (either direction).
To clear Write "1" to the corresponding interrupt status bit

Mobile Access Interface Interrupt Outputs

The five mobile access interface interrupt groups (UINT4 to UINT0) are connected to the CPU through port
interrupt request output pins (CP4 to CP0). The communications block interrupt select register provides settings for
mapping all five to a single output, or, at the other extreme, to distribute them to separate outputs.
Interrupt Group Assignments for Communications Modes
The communications macro select (MCRS) register (D[1:0]/0x200000) specifies the communications mode and
thus the assignments to the five interface interrupt groups UINT4 to UINT0.
Communications
mode
Interrupt UINT0
Group UINT1
UINT2
UINT3
UINT4
Interrupt Request Outputs CP[4:0]
The communications block CPx interrupt select registers (CPxEN) (D[4:0]/0x0200020 to D[4:0]/0x0200028)
provide program control over the mapping of the five interface interrupt groups UINT4 to UINT0 to the
interrupt request pins CP4 to CP0 using the following formulas.
CP0 = CP0EN0*UINT0 + CP0EN1*UINT1 + CP0EN2*UINT2 + CP0EN3*UINT3 + CP0EN4*UINT4
CP1 = CP1EN0*UINT0 + CP1EN1*UINT1 + CP1EN2*UINT2 + CP1EN3*UINT3 + CP1EN4*UINT4
CP2 = CP2EN0*UINT0 + CP2EN1*UINT1 + CP2EN2*UINT2 + CP2EN3*UINT3 + CP2EN4*UINT4
CP3 = CP3EN0*UINT0 + CP3EN1*UINT1 + CP3EN2*UINT2 + CP3EN3*UINT3 + CP3EN4*UINT4
CP4 = CP4EN0*UINT0 + CP4EN1*UINT1 + CP4EN2*UINT2 + CP4EN3*UINT3 + CP4EN4*UINT4
Port Interrupts and Interrupt Request Outputs
Table 10.10 summarizes the relationships between the above interrupt request outputs CP[4:0] and the port
input interrupts FPT[7:3].
B-III-10-20
Table 10.9 Interrupt Groups
Serial interface
Ch. 3 communications
–
–
–
–
MSINT MSINT
Table 10.10 Port Interrupts and Interrupt Request Outputs
Interrupt
source 11
FPT7 P27
FPT6 P26
FPT5 P25
FPT4 P24
FPT3 P23
FPT2 P22
FPT1 P21
FPT0 P20
UART HDLC
communications
– RXINT
– TXINT
– SPINT
– ESINT
MSINT
SPT setting
10 01
– P33
– P32
P05 P31
P04 –
P03 <CP4>
P02 K52
P01 K51
P00 K50
EPSON
PDC
communications communications
PDCINT PRINT
– PTINT
–
–
MSINT MSINT
00
<CP3>
<CP2>
<CP1>
<CP0>
K63
K62
K61
K60
S1C33210 FUNCTION PART
PHS
–
–