pcn_csr_read
csr0 = pcn_csr_read(sc, LE_CSR0);
if (pcn_csr_read(sc, LE_CSR5) & LE_C5_SPND)
if (pcn_csr_read(sc, LE_CSR0) & LE_C0_IDON)
reg = pcn_csr_read(sc, LE_CSR15);
val = pcn_csr_read(sc, LE_CSR12 + i);
chipid = pcn_csr_read(sc, LE_CSR88);