Ricoh R5C841 Manual Do Utilizador

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2004 R

EV

. 1.10 

3-11 

 

46 A17 

CAD16 

— 

— 

— 

47 A18 

RFU 

— 

— 

— 

48 A19  CBLOCK#  — 

— 

— 

49 A20  CSTOP#  — 

— 

— 

50 A21  CDEVSEL#  — 

— 

— 

51 

VCC VCC VCC VCC VCC 

52 VPP 

VPP 

— 

— 

— 

53 A22  CTRDY#  — 

— 

— 

54 A23  CFRAME#  — 

— 

— 

55 A24 

CAD17 

— 

— 

— 

56 A25 

CAD19 

— 

— 

— 

57 

VS2#  CVS2 CVS2  CVS2 CVS2 

58 RESET 

CRST# 

— 

— 

— 

59 WAIT#  CSERR# 

— 

MSCD# 

— 

60 INPACK#/RFU 

CREQ# 

SDCD# 

— 

— 

61 REG#  CCBE3# 

— 

— 

— 

62 SPKR#/BVD2  CAUDIO 

SDWP# 

— 

XDR/B# 

63 STSCHG#/BVD1  CSTSCHG 

— 

— 

— 

64 D8 

CAD28  — 

— 

— 

65 D9 

CAD30  — 

— 

— 

66 D10 

CAD31 

— 

— 

— 

67 CD2#  CCD2# CCD2#  CCD2# CCD2# 
68 

GND  GND GND  GND GND 

 
 

 

In this chapter, the detailed signal pins in the R5C841 are explained. Every signal is divided 
according to their relational interface. 

Card Interface signal pin is multi

−

functional pin. Card Interface mode is configured automatically by 

the card insertion; CardBus card or 16

-

bit card. And the pin function is redefined again. 

# mark means the signal is on either active or asserted when the signal is low

−

level. Otherwise, 

no

−

mark means the signal is asserted when the signal is high

−

level. 

The following the notations are used to describe the signal type. 

 

IN 

 Input Pin 

OUT 

 Output Pin 

OUT (TS) 

 Three State Output Pin 

OUT (OD) 

 Open Drain Output Pin 

I/O 

 Input Output Pin 

I/O (OD) 

 Input Output Pin  (Output is Open Drain) 

s/h/z 

Sustained Tri

−

State is an active low tri

−

state signal owned and driven by one and only one agent 

at a time. The agent that drives an s/h/z pin low must drive it high for at least one clock before 
letting it float. A new agent cannot start driving an s/h/z signal any sooner than one clock after the 
previous owner tri

−

state is.