Renesas H8S/2111B 用户手册

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页码 582
Rev. 1.00, 05/04, page 377 of 544 
 
15.3.2 
Host Interface Control Registers 2 and 3 (HICR2, HICR3) 
Bits 6 to 0 in HICR2 control interrupts from the host interface (LPC) module to the slave 
processor (this LSI). Bit 7 in HICR2 and HICR3 monitor host interface pin states. 
The pin states can be monitored regardless of the host interface operating state or the operating 
state of the functions that use pin multiplexing. 
•  HICR2 
R/W 
Bit Bit 
Name 
Initial 
Value 
Slave Host Description 
GA20 
Undefined  R 
— 
GA20 Pin Monitor 
6 LRST 
R/(W)* — 
LPC Reset Interrupt Flag 
This bit is a flag that generates an ERRI interrupt when 
an LPC hardware reset occurs.  
0: [Clearing conditions] 
•  Writing 0 after reading LRST = 1 
1: [Setting condition] 
•  LRESET pin falling edge detection 
5 SDWN  0 
R/(W)* — 
LPC Shutdown Interrupt Flag 
This bit is a flag that generates an ERRI interrupt when 
an LPC hardware shutdown request is generated. 
0: [Clearing conditions] 
•  Writing 0 after reading SDWN = 1 
•  LPC hardware reset and LPC software reset 
1: [Setting condition] 
•  LPCPD
 
pin falling edge detection 
4 ABRT 
R/(W)* — 
LPC Abort Interrupt Flag 
This bit is a flag that generates an ERRI interrupt when 
a forced termination (abort) of an LPC transfer cycle 
occurs. 
0: [Clearing conditions] 
•  Writing 0 after reading ABRT = 1 
•  LPC hardware reset and LPC software reset 
•  LPC hardware shutdown and LPC software 
shutdown 
1: [Setting condition] 
• 
LFRAME pin falling edge detection during LPC 
transfer cycle