
2
V
RC
4171A Companion Chip
Figure 1. Internal Block Diagram
mc_irq
reset_I
exca_memcs16_I
exca_iocs16_I
exca_iochrdy_I
spkrout
rio_I
smemwr_I
smemrd_I
siowr_I
siord_I
sbhe
reset_I
exca_memcs16_I
exca_iocs16_I
exca_iochrdy_I
smemwr_I
smemrd_I
siowr_I
siord_I
sbhe
98YL-0005B (7/98)
Slot A
PC Card
Control
(ExCA)
Slot B
PC Card
(ExCA)
or
Compact
Flash
Controls
Slot B
(Option)
Miniature
Card
Control
(Flash
ROM
Only)
LCD
M
A_ADR[25:12]
sd[15:0]
SD[15:0]
pc_addr_o[25:12]
SA[25:0]
sa[25:0]
sd[15:0]
sd[7:0]
pc/cf_addr[25:12]
mc_addr[24:12]
exca_reg_r_dat[7:0]
exca_reg_r_dat[7:0]
CLK
Divider
vclk
CFG
LOGIC
cfg_ctrl
lcdrdy
LCDRDY
IRQ
vplcdbl
vplcd
vpbias
vd_I[7:0]
vd_u[7:0]
tftd[17:16]
flm
loclk
dtmg
shclk
vwe_I
vcas_I_I
vcas_u_I
vras_I_I
vras_u_I
vma[8:0]
vd[15:0]
VPLCDBL
VPLCD
VPBIAS
VD_L[7:0]
VD_U[7:0]
TFTD[17:16]
FLM
LP
DTMG
SHCLK
*VWE
*VCAS[0]
*VCAS[1]
*VRAS[0]
*VRAS[1]
VMA[8:0]
VD[15:0]
pc_ce_I[2:1]
*A_CE[2:1]
pc_vppen1_o
A_VPPEN[1]
pc_vppen0_o
A_VPPEN[0]
pc_vccen1_I
*A_VCCEN[1]
pc_vccen0_I
*A_VCCEN[0]
pc_inpack_I
*A_INPACK
pc_reg_I_o
*A_REG
pc_crst_o
A_RESET
pc_wp_iocs16_I
A_WP
pc_rdy_busy_I
A_RDY/*A_BSY
pc_wait_I
*A_WAIT
pc_vs_i[2:1]
*A_VS[2:1]
pc_bvd_i[2:1]
A_BVD[2:1]
pc_cd_i[2:1]
*A_CD[2:1]
mc_vccen[1:0]
exca_int[5:3]
exca_int[7]
exca_int[12:9]
exca_int[15:14]
pc/cf_we_I
pc/cf_oe_I
pc/cf_ce_I_o[2:1]
pc_vppen1_o
pc_vppen0_o
pc/cf_vcc3_I_o
pc/cf_vcc5_I_o
pc_iord_I
pc_iowr_I
pc_we_I_o
pc_oe_I_o
pc_dir_o
pc_out_en_I
pc/cf_inpack_I
pc/cf_reg_I_o
pc/cf_crst_o
pc/cf_wp_iocs16_I
pc/cf_rdy_busy_I
pc/cf_wait_I
pc/cf_vs_i[2:1]
pc/cf_bvd_i[2:1]
pc/cf_cd_i[2:1]
pc/cf_dir_o
pc/cf_out_en_I
mc_oe_l
mc_we_I
mc_ceh_I
mc_cel_I
mc_dir_o
mc_crst_I
mc_rdy_busy_
mc_cd_I
mc_vs_i[2:1]
lcdcs_I
*LCDCS
clk8m
BUSCLK
GATED_I
rd_I
*RD
wr_I
*WR
X1
X2
MUX
MCLK
(V
RC
4171A)
MFP[35:0]
clk8m
spkrout
rio_I
reset_I
exca_memcs16_I
exca_iocs16_I
exca_iochrdy_I
smemwr_I
smemrd_I
siowr_I
siord_I
sbhe
exca_int[5:3]
exca_int[7]
exca_int[12:9]
exca_int[15:14]
clk8m
*SPKROUT
*RIO
*RESET
*MEMCS16
*IOCS16
IOCHRDY
*SMWR
*SMRD
*SIOWR
*SIORD
*SBHE
sa[25:0]
sd[7:0]
sa[25:0]
sa[23:0]
sd[15:0]
sa[11:0]
sd[15:0]
sa[23:0]
vmclk